Chocolate Raspberry Brownies

200g dark chocolate, chopped 

100g milk chocolate, chopped 

250g butter 

400g caster sugar

4 large eggs 

140g flour 

50g cocoa powder 

200g raspberries 

Heat oven to 180C/160C fan/gas 4. Line a 20 x 30cm baking tray tin with baking paper. Place chocolate, butter and sugar in a pan and gently melt, stirring occasionally with a wooden spoon. Remove from the heat. Stir in the eggs, one by one, into the melted chocolate mixture. Sieve the flour and cocoa, and stir in. Stir in half the raspberries, and scoop mixture into a tray, then scatter over the remaining raspberries. Bake on the middle shelf for 30 mins or, if you prefer a firmer texture, for 5 mins more. Cool before slicing into squares. Store in an airtight container for up to 3 days.