Brownie recipe :

125g (4¼ oz) butter
200g (7 oz) caster sugar
2 eggs
1 teaspoon vanilla extract
5 tablespoons good quality cocoa powder
60g (2¼ oz) plain flour
1/4 teaspoon salt
1/4 teaspoon baking powder

For the icing
50g (2 oz) butter, softened
3 tablespoons good quality cocoa powder
1 tablespoon honey
1 teaspoon vanilla extract
125g (4¼ oz) icing sugar

Enjoy :)

No wonder you were having a rough time on Classic, check out the differences:
http://gaming.stackexchange.com/questions/87242/what-are-the-differences-between-normal-and-classic-difficulties?rq=1

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