Pour batter into a buttered and floured cake pans- two 9-inch cake pans.
For cooking time, use the cooking times on the back of the cake box as a guide and add about 10 minutes to that. Use a toothpick in the middle to check for no gooey centers.
For the Vanilla Buttercream Frosting
In a mixer, cream butter until light and fluffy.
1 Cup Butter
Add powdered sugar and continue creaming until well blended.
4 Cups Powdered Sugar
Add salt, vanilla, and whipping cream.
1/4 teaspoon Salt, 1 teaspoon Vanilla , 1/4 Cup Heavy Whipping Cream
Blend on low speed until moistened and then beat at high speed until frosting is fluffy.
If needed, level the cakes using a serrated knife. Place one cake layer on the cake plate.
Top with about 1/2 cup of frosting. Spread evenly using an angled spatula.Place the second layer upside down on the frosting so that the flat bottom is facing up.
Add another 1/2 cup of frosting, smoothing the frosting out and pushing excess frosting to the edges.
Using an angled spatula, spread a thin layer of frosting all around the edges. Chill the cake for 30 minutes then spread another layer of frosting over the chilled cake
A smooth finish or swirls using a spoon work great, my preferred is a spoon and then chocolate sprinkles or mini chocolate chips for decor.