Recipe adapted a little from the Serious Eats cookbook, which is seriously fabulous!   Adult Brownies Serves: 16-32 brownies, depending on how small you cut 'em! Ingredients 2 tablespoons softened butter 2 tablespoons unsweetened cocoa powder 12 tablespoons unsalted butter, room temperature and cut up into cubes 2 four ounce bars high quality milk chocolate,