Preheat oven to 240°C / 220°C fan / 475°F
Grease or line muffin tin.
Prepare your courgettes by coarsely grating them.
Place the grated courgette into a colander and press down lightly on the courgette to remove some of the liquid. This is best done over a bowl or plate to catch the liquid. Alternatively, squeeze the grated courgette in a clean tea towel over the sink. It’s important to remove some of the moisture from the courgettes to prevent soggy muffins.
Mix dry ingredients together.
Whisk the wet ingredients together.
Pour the wet ingredients onto the dry ingredients and lightly fold in. Do not over mix.
Now add the drained courgettes and chocolate chips before gently mixing everything together.
Place 1 heaped tablespoon of batter into each standard muffin tin spot or 2 heaped tablespoons into each jumbo size spot.
Sprinkle granulated sugar over the top of each muffin.
Turn down the oven temperature to 220°C / 200°C fan / 425°F
Bake for 5 minutes and then reduce the oven temperature to 180°C / 160°C fan / 350°F. Now bake standard size muffins for a further 15 minutes and jumbo size muffins for a further 25 minutes. Do not open the oven door during baking.
Check for doneness by inserting a cake tester or toothpick into the centre of the muffin. If the tester / pick comes out clean, the muffins are done.
Leave your muffins to cool in the tin for 10 minutes before eating.