In a mixing bowl, add the yellow cake mix, melted butter, egg, and vanilla extract. (If you want an even more authentic ...

2/3 cup butter, softened (no substitutes) 1-3/4 cups sugar l-1/2 teaspoons of vanilla extract 2 large eggs 2-1/2 cups sifted flour ½ teaspoons of salt I have the perfect yellow layer cake recipe ...