Add a thick layer of white buttercream all over the cake.
Blue and white marble buttercream cake.
Vanilla buttercream frosting 3 cups unsalted butter room temperature 678 grams 11 cups powdered sugar 1375 grams 1 tsp salt 6 grams 1 3 cup heavy cream or whipping cream 75 grams 1 1 2 tbsp vanilla extract 18 grams purple blue green yellow orange and red gel food coloring.
In a medium bowl add 2 cups white.
I made this cake for my friend last weekend.
I wanted to do a littl.
Then remove the acetate and smooth over any imperfections you may have with a hot spatula or bench scraper.
Add a 2 3 cup of vanilla buttercream over the cake.
1 1 2 c unsalted butter softened 1 2 c shortening 2 tsp vanilla extract 6 c powdered sugar 2 tb heavy cream non pareils for decoration optional.
Gently smooth over the acetate to make sure the buttercream is fully attached to the cake and pop in the freezer for about 25 30 minutes to firm up the frosting.
Putting it all together layer one marble cake cut side up onto cake board.