Caramel and coconut go hand in hand, much like peanut butter and chocolate. In order to make these double flavored cupcakes, you will need a tool that holds one side of the batter in place while you pour in the other. It sounds far more complicated than it really is. After these coconut on one side and caramel on the other cupcakes have baked, top them with a layer of caramel sauce, another of coconut flavored buttercream, and then some caramel drizzles. You really do get the best of both worlds!
Source Easy Baked