• 240g/8oz butter
  • 150g/5oz dark chocolate
  • 60g/2oz cocoa
  • 500g/1lb 2oz caster sugar
  • 150g/5oz plain flour
  • 5 eggs, beaten
  • 150g/5oz marshmallows


  • STEP 1
    Heat the oven to 190C/375F/Gas 5. Line a 30cm/12in square tin with baking parchment.
  • STEP 2
    Gently melt the butter and the chocolate together.
  • STEP 3
    Mix the cocoa, flour and sugar and mix into the butter and chocolate. Mix in the beaten eggs then fold in the marshmallows.
  • STEP 4
    Pour the brownie mixture into the tin and bake in the oven until the surface has set but still feels squidgy underneath. This will take about 20 -30 minutes. Allow to cool in the tin before slicing.

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