Marble Cake Recipe Ombre Buttercream Cake Tutorial

in this tutorial, I demonstrate how to create a tall marble cake and decorate it in an easy ombre buttercream decorating. For more dessert inspiration and tutorial sneak peeks, visit: Marble Cake Recipe for tall 7 inch cake. 1 1/2 cup unsalted butter 3 cup caster sugar 2 and 1/2 tsp vanilla extract 4 eggs 5 tablespoons sour cream 3/4 cup buttermilk pinch