RED WINE CHOCOLATE CAKE WITH VANILLA BUTTERCREAM

Steps:

• For the cake: Preheat the oven to 350 degrees F. Butter a 9-by-13-inch cake pan.
• Whisk together the flour, cocoa powder, baking soda and salt in a medium bowl and set aside.
• Combine the butter and brown sugar together in a large bowl and beat with an electric mixer at medium-high speed until light and fluffy, about 3 minutes. Add the eggs 1 at a time, beating well after each addition. Beat in the vanilla. With the mixer on low, add the flour mixture in 3 batches, alternating with the red wine, beginning and ending with the flour, mixing until just incorporated.
• Spoon the batter into the prepared baking pan and smooth the top with an offset spatula. Bake until a wooden skewer inserted into the center of the cake comes out clean, about 35 minutes. Cool completely on a rack.
• For the buttercream: Place the butter in a large bowl and beat with a mixer on medium-high speed until smooth. Add the confectioners' sugar in 3 batches, beating until each batch is incorporated. After adding the last batch, continue to beat until very smooth and lightened, about 3 minutes. Add the vanilla and 1 tablespoon of the half-and-half and beat until incorporated. Add more half-and-half as needed to make the icing a smooth, spreadable consistency. Keep at room temperature until ready to use.
• Spoon the buttercream onto the cake and smooth with an offset spatula. Cut the cake into squares and serve.