Find out why people have called this easy white cake “the best cake they have EVER had”! Be prepared for tons of compliments when you make this! Follow my easy hacks to make a box cake taste homemade and you’ll be shocked how good it is!
Prep Time10 minutesmins
Cook Time40 minutesmins
Additional Time30 minutesmins
Total Time1 hourhr20 minutesmins
Course: Dessert
Cuisine: American
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1boxwhite cake mix15.25 oz (I prefer Duncan Hines)
1cupgranulated sugar
1cupall purpose flour
¾tspsalt
4largegg whites
1tspvanilla extractclear or regular
1cupskim milk
½cupbuttermilk
1cupsour cream
Vanilla Buttercream
2sticksunsalted butter, room temperature1 cup
3-4cupspowdered sugar
1tspvanilla extract
1tbspmilkif frosting becomes too thick
Instructions
Cake
Preheat the oven to 350º F.
In a large mixing bowl combine the cake mix, sugar, flour, salt, egg whites, vanilla extract, milk, buttermilk, and sour cream, beat with an electric mixer until combined, 1-2 minutes.
Spray a 9x13 inch pan with non-stick cooking spray. Pour the batter into the pan and bake for 37-43 minutes or until a toothpick inserted in the center of the cake comes out clean. Allow the cake to cool completely before adding frosting.
Vanilla Buttercream
In a mixing bowl, combine the butter and vanilla extract, beat using an electric mixer until fluffy. Begin to add the powdered sugar, about 1 cup at a time, mixing by hand. Continue adding powdered sugar until the frosting no longer looks wet and tastes good to you. Then I use my electric mixer one last time to make sure the powdered sugar is really incorporated and ready to go. If the frosting becomes too thick, add a dash of milk.
Spread the frosting on top of the cooled cake, add sprinkles if desired.