Step 1

Preheat oven to 350F degrees. Spray (9x2 inch cake pans[ with nonstick spray. Set aside.

Step 2

Use a electric or stand mixer, mix the cake mix, vanilla instant pudding mix, vegetable oil, milk, sour cream and eggs until combined.

Step 3

Pour cake batter evenly into 2 prepared cake pans. Bake for 35-40 minutes or until a toothpick inserted near the center comes out clean. Allow to cool before frosting.

Step 4

Mix the softened butter on medium speed with an electric or stand mixer. Beat for about 3 minutes until smooth and creamy. Add powdered sugar, whipping cream, vanilla extract, and salt. Increase to high-speed and beat for 3 minutes. Using a spoon, stir in 3 Tablespoons of sweet orange marmalade until evenly distributed throughout the frosting.

Step 5

Place 1 layer on your cake stand. Evenly cover the top with buttercream frosting. Top with 2nd layer and top with frosting and spread the frosting around the sides evenly. Refrigerate for at least 30 minutes before serving.