Vanilla Buttercream Frosting tastes amazing smeared all over them, but any frosting would adorn them well. Lemon, Salted Caramel, Chocolate, Peppermint, Ganache frostint or cream cheese frosting are all good choices!
Using buttermilk for this recipe is key! Make sure the buttermilk is at room temperature before adding it to the batter. Don't have any? Use this 2-ingredient trick!