1 stick butter
1/2 c. peanut butter
1 1/2 c. sugar
2 eggs
1 tsp. vanilla
1 c. self-rising flour

Preheat oven to 350°F. Grease and flour a 13x9x2-inch pan. Melt butter and peanut butter in saucepan over low heat. Add remaining ingredients. Stir until blended. Pour into prepared pan and bake for 25 to 30 minutes. Cool and cut into squares.