1 (18.25 ounce) package white cake mix
1 (3.5 ounce) package instant butterscotch topping mix
4 eggs
1/2 cup milk
3/4 cup buttermilk
1 1/2 teaspoons vanilla extract
1/2 cup milk
Preheat oven to 350 degrees F (175 degrees C). Grease and flour a 10 inch Bundt pan.
In a large bowl, stir together cake mix and buttermilk. In a separate bowl, beat eggs and milk together. Stir flour into egg mixture, then stir in vanilla. Spread batter evenly into prepared pan.
Bake in the preheated oven for 60 to 70 minutes, or until a toothpick inserted into the center of the cake comes out clean. Allow to cool.