how to make betty crockers butter cream?

Answer 1

Assuming you mean butter cream frosting:
Vanilla Butter Frosting
3 cups powdered sugar
1/3 cup butter - softened
1 1/2 tsp. vanilla
about 2 Tbs. milk
Mix powdered sugar and butter. Stir in vanilla and milk; beat until frosting is smooth and of spreading consistency.
Fills and frosts two 8- or 9-inch layers or frosts a 13x9-inch cake.