Choose your favourite flavour of South Devon Chilli Farm Chilli Chocolate for this recipe - we find Orange works particularly well with cake mixes, but it would be equally good with Original, Flaked Sea Salt or Madagascar
360g unsalted butter, melted
150g cocoa powder
600g caster sugar
Few drops of vanilla essence
200g plain flour
1½tsp baking powder
8 eggs, lightly beaten
220g South Devon Chilli Farm Orange Chilli Chocolate broken into small pieces (or a mixture of your favourite plain chocolate with our chilli chocolate)
Preheat the oven to 160°c. Line a 24 x 32cm baking tin (6cm deep) with baking parchment. Mix the melted butter, cocoa, sugar and vanilla in a food processor until just mixed. With the machine running slowly, add the flour, baking powder and eggs until combined, then turn off the mixer and fold in orange chilli chocolate pieces.
Pour into the lined tin and bake for 30-40 minutes or until just setting and the surface is beginning to crack.
Allow to cool in the tin and then cut into portions.