A gingerbread sheet cake topped with whipped cinnamon marshmallow buttercream frosting and sprinkled with pretty gold and white sprinkles. If you are a gingerbread fan, you are going to love this cake. It’s filled with sugar and spice and everything nice! Let me just say, this is one of the best cakes I have ever … More Gingerbread Cake {with cinnamon marshmallow frosting}