Orange Creamsicle Cake with Buttercream Frosting

1 box Duncan Hines Orange Supreme cake mix

1 small box vanilla pudding mix, dry

1 c. oil

1/2 c. milk

1 c. sour cream

3 eggs

Orange Buttercream Frosting:

2 sticks butter, softened

2 c. powdered sugar

1 t. orange extract

2 T. heavy whipping cream or evaporated milk

3 T. orange soda or orange marmalade, I used soda

Preheat oven to 350. Spray 9x13 pan. Set aside. Combine cake mix, instant pudding mix, oil, milk, sour cream, and eggs until well combined. Pour batter in pan. Bake 24-29 minutes until toothpick comes out clean. Cool before frosting. Combine softened butter on medium speed for 3 minutes until smooth and creamy. Add powdered sugar, cream, and extract. Increase to high speed and beat for 3 more minutes. Stir in 3 T. orange marmalade or orange soda. Cover cake evenly with frosting. Refrigerate for at least 30 minutes before serving. Cake can be frozen for 2 months. Very yummy! The frosting is like a ganache. Everyone loved it!