This recipe was born one quiet, rainy Saturday afternoon when I couldn’t work out if I wanted brownies or cookies. With the self-assurance of Neil Armstrong and Buzz Aldrin planting their flag on the moon, I crowned a tin of brownies with a layer of chocolate chip cookie dough, and haven’t felt bad about being indecisive since. If you don’t want to use raw egg in the cookie dough, replace it with 3 tablespoons of whole milk. You’ll need 40g less flour.
For a cake that boasted deep chocolate flavor and color, we used a combination of Dutch-processed cocoa and melted bittersweet chocolate; the cocoa offered pure, assertive chocolate flavor while the chocolate contributed complexity as well as fat and sugar. Neutral-tasting oil allowed the chocolate flavor to shine. To minimize cleanup, we mixed the wet and dry ingredients directly into the saucepan where we’d melted the chocolate with cocoa and milk. A milk chocolate ganache contrasted nicely with the deeper flavor of the cake. To make the ganache thick, rich, and creamy, we added plenty of softened butter to the warm chocolate-cream mixture, refrigerated the frosting to cool it quickly so that it would spread nicely, and gave it a quick whisk to smooth it out and lighten its texture.