This minty chocolate cookie recipe makes a big batch, but the dough freezes really well so it can easily be halved. For the dough, sift the flour, cocoa and bicarbonate of soda into a medium bowl.
In a large bowl using an electric mixer, cream together butter and sugars until fluffy, about two minutes. Beat in egg and extract. In another bowl, combine flour, cocoa, baking soda and salt. Using ...