Step 1

Preheat the oven to 180°c (160 fan/ Gas 4/ 350F) and line a 30 x 20 cm brownie tin with baking paper.

Step 2

Place the grated courgettes in a sieve above the sink to let any excess water drip out.

Step 3

Melt the butter and chocolate in the microwave. I microwave for 20 seconds at a time and then stir the mixture. This ensures the chocolate doesn't burn or seize. Leave to cool.

Step 4

In another bowl, whisk the eggs and sugars together for 2-3 minutes (using an electric whisk). You want the mixture to be pale and fluffy.

Step 5

Mix the cooled melted chocolate mixture into the whisked eggs and sugar.

Step 6

Stir in the grated courgette and vanilla extract.

Step 7

Fold in the flour, cocoa powder, baking powder, and chocolate chips. make sure everything is well mixed.

Step 8

Spoon the mixture into the baking tin and bake for 30 minutes. Cool completely before cutting and serving.