1 lb. powdered sugar
1 tbsp. vanilla
1 c. crunchy peanut butter
2 sticks butter

Place sugar, peanut butter and butter in glass bowl and microwave for 2 minutes on High. Stir a few times during cooking. At the end of 2 minutes, remove and stir until smooth. Add vanilla and blend well. Pour into a buttered 9x9 inch dish. Chill for 30 minutes. Cut into squares.