Oh, Martha Stewart, what would we do without you? It never would have occurred to me to pour cupcake batter into an inverted waffle cone. These Christmas Tree Cupcakes are genius. Sanding sugar for snow is a lovely touch. As if that wasn’t enough to get you excited about making them, with cocoa powder and buttermilk, this cake is going to be delicious. Don’t forget to be absolutely unhurried while pouring batter into your cones or to insert your handy toothpick to keep your forest of shimmering Christmas trees standing tall.