I really love pairing these cupcakes with my black buttercream frosting. This frosting tastes like an Oreo and is delicious here! They're also good with the vanilla buttercream in my small batch vanilla cupcake recipe. For a different look, you could also use my pretty in pink cream cheese raspberry frosting. Raspberry and chocolate are an excellent combo! I feel the same way about blueberry and chocolate. This blueberry buttercream frosting with cream cheese would make for a unique and tasty pairing, too, if you haven't tried it.