Courgette Brownies

These Courgette Brownies are super moist, delicious and decadent – no one will ever guess there’s zucchini in these brownies!

Courgette glut ? My brownie recipe is the perfect solution. Courgette keeps the brownies deliciously moist, ensuring a fudgy brownie and winning hands down for the best ever brownies.

Courgette Brownies are deliciously decadent with rich chocolate enhanced by the addition of espresso powder. Just the right amount of gooeyness with a paper thin, crackly top.

Three pieces of courgette brownie in a stack.

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I love courgette season but OH doesn’t look forward to the masses of his least favourite vegetable turning up everywhere.

So, after plenty of ratatouille, roasted courgette quiche, courgette soup, Smoked Salmon with Courgette Savoury Cake, lasagne and Courgette and Ginger Jam, Courgette Chutney, OH was pleased to try courgette in a brownie. Even if the courgettes are growing so fast there are plenty for the compost heap, I hate to waste food so these Courgette Brownies turn a glut into a great asset.

I use the whisking method in my courgette brownies and without a doubt it’s the best way to make brownies. They don’t shrink like they do when you just beat the eggs and sugar into the melted butter and chocolate. Nor are your brownies as dense as you’ve whisked in all that air to give a gorgeous creamy texture.

These Courgette Brownies are super moist, delicious & decadent - no one will ever guess there's zucchini in these brownies!

What equipment do I need ?

  • A stand mixer or electric hand mixer – I wouldn’t recommend whisking by hand. It takes too long and I’ve never achieved the same results. I use my KitchenAid because it makes light work of whisking.
  • A non-stick brownie / traybake tin 27cm x 20 cm x 3.5 cm (11″ x 8″ x 1½”)
  • Enough baking parchment to line the tin and include a 5 cm overhang for easy removal of brownies.

What ingredients do I need ?

  • You will need the usual basic ingredients for a brownie: butter, eggs, sugar, vanilla extract, plain flour, cocoa powder and baking powder (see recipe card).
  • Courgettes or marrow. If using marrow, I recommend peeling them first because marrow skins are a bit tougher than courgette skins.
  • Use good quality dark chocolate chips. Avoid milk chocolate because after you’ve added all the other ingredients, milk chocolate would be lost in the finished brownie. I like to use Callebaut Belgian chocolate in my baking and chocolate work. Callebaut is sustainably sourced and the company collaborate directly with their cocoa bean growers.
  • Optional: Espresso coffee powder. I use espresso powder in all my chocolate cakes and chocolate brownies. The coffee acts to intensify the chocolate flavour and there is no taste of coffee in the brownie.
  • Optional: Chopped nuts to add some crunch and a contrast in texture to your brownie. I used hazelnuts.

How to make the best Courgette / Zucchini Brownies

Grated and chopped courgettes on a chopping board with a knife.
  • Firstly, prepare your courgettes by coarsely grating and then chopping into finer pieces. Although you want the moisture that comes from the courgettes I like to drain them in salt first. This stops the brownie mixture from being too wet.
  • Melt the chocolate and butter together and add the vanilla extract. It’s much easier to melt the butter and chocolate in the microwave but don’t burn your chocolate though. I find 2 minutes on high in 30 second bursts is just enough to melt. Mix until nice and smooth and leave to cool.
Chocolate and butter in a jug. Followed by an image of egg and sugar whipped to a mousse.
  • Whisk the eggs and sugar together until doubled in volume. I use a stand mixer but an electric hand mixer will do the job too. This will take about 5 to 8 minutes depending on your mixer.
  • To check you have enough volume with your eggs and sugar, lift your whisk and if there is a trail on the surface of the mixture for a second or two, it’s done.
Brownie batter mix in a mixing bowl.
Flour and cocoa powder being folded into chocolate mixture. Followed by an image of the brownie mixture being poured into the tin.
  • Now it’s time to carefully fold in the cooled melted chocolate and butter by hand. Folding in is essential as beating in at this stage will make the mixture runny. Not only will a runny brownie mixture take longer to cook but you’ll end up with a denser brownie.
  • Fold in the courgettes (and nuts if using) in a figure of 8 movement. Take your time, you don’t want to knock the air out.
  • Hold a sieve over the bowl of your chocolate mixture and sieve the dry ingredients. Carefully fold in using a figure of eight movement.
  • Pour your mix into a prepared baking tin and bake for 30 minutes.
  • Remove from the oven and if you can, leave in the tin until completely cold. Leaving your brownies to cool for at least an hour makes them gooier and easier to cut.
Brownie removed from the tin and cut into pieces.

How to tell when your brownies are done

Check to see if there is a paper like crust on top – there shouldn’t be any movement in the centre of the tin. If you insert a toothpick into your brownie there will be a few moist crumbs sticking to the tooth pick as you pull it out.

If there is still wet batter on the tooth pick pop your brownies back in the oven for another five minutes.

An even easier way to check your brownies are ready is to use a digital thermometer – ideally you’re looking for 90°C. I use a Thermapen because it give an accurate reading very quickly.

Baked Brownie in a tin cooling.

How long do they keep ?

Layer Courgette Brownies between baking parchment inside an airtight container. You can keep your brownies this way for up to five days.

Can I freeze them ?

Yes, you can! Cut into portions and open freeze for a couple of hours before putting into a food safe freezer bag.

They will keep in the freezer for up to three months.

Close up of brownies cut into squares.

More courgette recipes

Courgette and Ginger Jam

Spicy Courgette Chutney

Courgette, Roasted Red Pepper & Feta Muffins

Courgette and Smoked Salmon Loaf

Let’s keep in touch! You can find me on Pinterest, Instagram, Facebook, and Twitter!

Three pieces of courgette brownie in a stack.

Courgette Brownies

These Courgette Brownies are super moist, delicious & decadent – no one will ever guess there’s zucchini in these brownies!
5 from 28 votes
Print Pin Rate Save Recipe
Course: Dessert, Afternoon Tea, Sweet Treat
Cuisine: British
Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes
Servings: 16 servings
Calories: 282kcal
Author: Sarah James

Equipment

  • 1 non stick baking tin 27cm x 20 cm x 3.5 cm (11" x 8" x 1½") lined with baking parchment (with a 5 cm overhang of parchment for easy removal of brownies)

Ingredients

  • 300 g courgettes / zucchini
  • ½ teaspoon salt
  • 200 g dark chocolate chips
  • 150 g butter
  • 3 eggs
  • 200 g caster sugar
  • 1 teaspoon vanilla extract
  • 140 g plain flour
  • 2 tbsp cocoa powder
  • 2 teaspoons baking powder
  • 2 teaspoons espresso powder Optional
  • 100 g chopped nuts I used hazelnuts ( Optional )

Instructions

  • Preheat oven: 180°C / 160°C fan / 350 °F / Gas Mark 4
  • Coarsely grate or shred your courgettes / zucchini before chopping the courgette into smaller pieces.
  • Place in a colander inside a bowl and sprinkle with salt. Leave to drain while you get on with the Brownies.
  • Place the chocolate and butter in a microwaveable bowl and microwave on high for 1 to 2 minutes in 30 second bursts until melted. Add the vanilla extract and stir until chocolate is nice and smooth and leave to cool.
  • In a large bowl, whisk the eggs and sugar together using an electric mixer until doubled in volume (about 5 to 8 minutes depending on your mixer)
  • Pour the cooled chocolate mix into your egg mix carefully and gently fold together with a silicone spatula.
  • Fold in the courgettes (and nuts if using) in a figure of 8 movement. Take your time, you don’t want to knock the air out.
  • Hold a sieve over the bowl of your chocolate mixture and sieve over the dry ingredients. Carefully fold in using a figure of eight movement.
  • Pour mixture into the prepared tin, gently easing the mixture into the corners of the tin and levelling with a spatula. Pop in the oven for 30 minutes.
  • Check to see if there is a paper like crust on top – there should still be some movement in the centre of the tin.
  • Insert a toothpick into the brownie there will still be a smear of brownie mix on the tooth pick with a few moist crumbs sticking to the tooth pick as you pull it out. If there is still wet batter on the tooth pick pop your brownies back in the oven for another five minutes.
  • Remove from the oven and leave in the tin until completely cold – if you can !
  • Using the extra parchment paper edges, remove from the tin and cut the into squares and dust with icing sugar.

Notes

To check you have achieved enough volume with your eggs and sugar. Remove your whisk, if there is a trail on the surface of the mixture for a second or two, it’s done.
Layer Courgette Brownies between baking parchment inside an airtight container. You can keep your brownies this way for up to five days.
Courgette Brownies will keep in the freezer for up to three months. Cut into portions and open freeze for a couple of hours before putting into a food safe freezer bag. 
Nutrition information is approximate and meant as a guideline only.
Nutrition Facts
Courgette Brownies
Amount per Serving
Calories
 
282
Calories from Fat 162
% Daily Value*
Fat
 
18
g
28
%
Saturated Fat
 
9
g
56
%
Cholesterol
 
51
mg
17
%
Sodium
 
243
mg
11
%
Potassium
 
195
mg
6
%
Carbohydrates
 
27
g
9
%
Fiber
 
2
g
8
%
Sugar
 
16
g
18
%
Protein
 
4
g
8
%
Vitamin A
 
322
IU
6
%
Vitamin C
 
3
mg
4
%
Calcium
 
56
mg
6
%
Iron
 
2
mg
11
%
* Percent Daily Values are based on a 2000 calorie diet.

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These Courgette Brownies are super moist, delicious & decadent - no one will ever guess there's zucchini in these brownies!

I’m linking to a few challenges this month:

And linking to: Fiesta Friday



70 thoughts on “Courgette Brownies”

  • These brownies are absolutely heavenly. Like the best brownies in the best cake shop in the world. We’re having them warmed for 15sec in microwave and with some yogurt poured over. Thanks so much for aiding the use of the fourth marrow in my veg box this month. I’m making these again!

    • Thanks Sue, so pleased you enjoyed our courgette brownies as much as we do. What a good idea to warm them, I think I’ll have a go at 15 seconds in the microwave.

    • Hi Anne, thanks for getting in touch. The info didn’t get put into the updated printable recipe, will update the post.
      You will need:
      1 baking tin 27cm x 18cm (11″ x 7″) lined with baking parchment (with a 5 cm overhang of parchment for easy removal of brownies)
      Let me know how you get on 🙂

      • Thanks for the tin size. I actually used a deep 12 “x 8” as my 11×7 didn’t look deep enough and I was right! It was the perfect size.
        I have to say this is the most moreish cake I’ve had in a while. It is sooooo moist and sticky. Even my grandson who made the cake with me and was disgusted at the thought of courgettes in a cake, couldn’t get enough down his throat fast enough!
        Mine doesn’t have a crispy top but a sticky top like gingerbread.
        I didn’t use 70% chocolate. I used a cheaper 50% chocolate and 30grams cocoa powder.

        • Hi Anne, I’m so pleased you and your grandson enjoyed my courgette brownies. Courgettes vary in how watery they are so maybe that affected your crispy top and ovens vary so perhaps try leaving the brownies in the oven for a little longer. It sounds like you had a lot of mixture so that would affect cooking time too. Mind you if you enjoyed them as they are I wouldn’t change what you’re doing 🙂

    • Thanks Lathiya, it is a great way to sneak veggies into a dessert for kids and adults too 🙂

  • 5 stars
    Wow, courgette in brownies sound super interesting and healthy too. Love the idea, especially when kids are fussy eaters, like mine.

    • Thanks Sapana. My kids have grown up but I do have a husband who’s a fussy eater and can sympathise 🙂

  • 5 stars
    I love using zucchini for baking as they add so much moisture to the cake and I bet it’s the same with these delicious and fudgy brownies! Looks yummy!

    • Thanks Gail, you’re right using zucchini/courgettes does add to the moistness in any bake and makes it so easy to get the squidgy centre that is essential in a brownie.

  • 5 stars
    I loved the idea of adding zucchini in a dessert. I was getting bored of zucchini bread and these brownies hit the spot.

  • 5 stars
    I always enjoy zucchini in baked goods, as I think it adds a special sweet flavor, and I can’t wait to try these!

  • 5 stars
    I’ve been meaning to try courgette brownies just to try something new and these look so good! Now I really want to make them. I’m not such a big fan of chocolate, but when you add courgettes I don’t think I would mind it! Healthy and chocolate is a perfect combination for me! I will definitely need to try this out one day. Thank you for sharing this recipe.

  • 5 stars
    Zucchini brownies are a wonderful idea!! What a great way to sneak in some nutrition and use up summer veggies at the same time!

  • 5 stars
    I recently took up an allotment and given the extra space have grown more courgette plants than ever before and i can’t even give them away! I made this recipe on Saturday evening for a family picnic yesterday. They are absolutely divine! I’ve made courgette brownies before but this will now be my go to recipe! Like yours, my husband is not overly keen on courgettes but he can’t tell they are in this! Really lovely. Thank you.

    • Thanks Rachel, so pleased my brownie recipe will be your go to recipe. Glad to hear I’m not the only one with a husband who’s not keen on courgettes 🙂

  • Fun recipe to make, fun to share! Little question — when to add the vanilla, I just added it after the chocolate, the recipe doesn’t note. FYI.

    • Thanks for getting in touch Gloria. Sorry it’s such a late reply but I’ve been on a break from my blog. You add the vanilla extract to the melted chocolate and butter, recipe is amended 🙂

    • Hi Pat, sorry for the late reply but I’ve had a bit of a break from my blog. My courgette brownies freeze really well.

  • 5 stars
    I made these for my family and work colleagues. They went down a treat. I included the hazelnuts. So easy to make. I will definitely be making them again ????

  • I plan ongiving these a go as my son loves brownies and it is an endless battle to get vegetables into him! I have baked some sweet marrow muffins this week and as courgettes and marrows are related may well give it a go substituting marrow as there is a bit of a glut of them here!

    • Thanks for stopping by Sarah. Marrows would be fine in the brownies, you might want to discard the inner stringy seed middle you get when courgettes get too big. Giving the grated large courgette/marrow an extra chopping would be an a good idea too as marrow skins can get a bit tough. Let me know how you get on.

  • My attempt at this recipe wasn’t very successful, it exploded out of my 7 X 11″ tin and still looks very soggy after 45mins, should there be some flour in this recipe?

    • I am so sorry Roz. You are absolutely right, there is 150 g of plain flour missing from the ingredients list. Please accept my apologies for your wasted time and ingredients, I feel terrible as I do proof read my recipes, in this case I simply don’t know what happened.

  • These brownies looks superb Sarah and just what a brownie ought to be like. I’ve made courgette brownies before and they were good, but not nearly as good as these look. I’ve been making quite a few courgette fritters and pancakes – they are delicious and I defy anyone to dislike them. Something else to try OH with maybe? Thanks for joining in with #WeShouldCocoa.

    • Thanks Choclette. that means a lot to me, I must admit I was a little nervous submitting a brownie recipe to the ‘Brownie Queen’ 🙂
      I like the idea of courgette fritters, definitely one to try on OH! Always a pleasure to link up with #WeShouldCocoa , I’ll try not to leave it so long next time.

  • Those look delicious and sound so healthy Sarah! Since I don’t cook with eggs, I would probably have to try this out with an egg substitute, but I will definitely be trying it out soon. 🙂

    • Thanks Ranjana, look forward to hearing how you get on, really interested in the egg substitute.

  • What a great way to hide some veggies in a decadent treat. Wonderful recipe and man do I want some chocolate now. Can’t wait for a glut of zuc’s now.
    Stopping by from Fabulous Foodie Fridays.

  • Yum! I’ve heard of zucchini brownies before, but I’ve never made one myself. These look rich and tasty! I love your kitchen tips and how you introduced us to your culture by describing the “The Courgette Wars.”

    Thank you so much for bringing these to the fiesta this week! Happy FF, and have a fabulous weekend!! 🙂

    • Thanks Kaila, I’m not so sure OH is pleased I’ve introduced “The Courgette Wars” to everyone but I’ve got some more recipe ideas to keep him happy.

  • Yummy! Great to hear OH loving these brownies 🙂 It really is a great way to work away all the courgettes! Thanks for sharing them at Fiesta Friday!

    • Thanks Margot, I’ve tried a chocolate beetroot cake so I bet it works well in a brownie 🙂

  • These look absolutely tasty! I always love to see how I can “hide” vegetables in sweet treats! I actually saw a black bean and avocado brownie recipe. Thanks for sharing!

    • Thanks Bobi, black bean and avocado brownies sounds interesting, I’ve tried avocado and chocolate mousse, it was delicious.

  • Are these seriously in the chocolate family? I am on it! Thank you for absolutely spoiling us at #foodpornthursdays!

  • I adore baking with courgettes… the bake just gets moister and moister the longer you leave it… not that these brownies would last very long in my house, they’re stunning! Thanks for linking to Simply Eggcellent!

    • Thanks Dom, brownies don’t last long at the Kitchen Shed either. A pleasure to link up with Simply Eggcellent, look forward to your round up 🙂

    • I’m not so sure I would say healthy brownies, lol but they are delicious. Let me know how you get on x

  • How interesting, I never would have even put courgette in the same sentence as brownies let alone in the same recipe but I’m curious to try it! Thanks for sharing.

    #FoodPornThursdays

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