2 c. sugar
1 stick butter
3/4 c. milk
1 (7 oz.) jar marshmallow creme
12 oz. peanut butter (creamy Jif is best)
2 tsp. vanilla

Melt butter in heavy saucepan on medium heat, stirring constantly. Stir in sugar and milk. Cook and stir until mixture reaches 246 degrees (firm ball stage). Take pan off heat and add other 3 ingredients, stirring all together. Pour into buttered pan and let set. Cut into squares.