1 lb. powdered sugar (3 c.)
1/4 c. milk
3/4 c. peanut butter
1/8 tsp. salt
1/4 c. butter

Put all ingredients in bowl in microwave (do not mix) for 1 minute. Stir ingredients, then place in microwave and cook for 1 more minute. Remove and stir.

Spread in pan (ungreased). Put in freezer for 5-7 minutes. Cut and serve.