2 c. white sugar
2 c. brown sugar
2/3 c. milk
1 tsp. vanilla
1/2 stick butter
1 (18 oz.) jar peanut butter
1 (7 1/2 oz.) marshmallow creme
1 c. chopped nuts

Mix first 5 ingredients in 3 quart saucepan. Stir until sugar is dissolved. Bring to a boil. Boil exactly 2 minutes. Remove from heat and add peanut butter, marshmallow creme and nuts. Beat until smooth and pour in buttered pan (I use 9x13). Works every time.