1 c. butter or half butter
1 c. sugar
3 tbsp. water
1 tsp. vanilla
1/2 c. finely chopped nuts
giant size Hershey chocolate bar

Mix first 3 ingredients in heavy saucepan and cook until 300°F on candy thermometer, stirring constantly. Do not rush boiling and be careful not to burn. Immediately take off heat and add vanilla. Quickly pour into buttered 9 x 9 pan. Lay chocolate bar on top and spread over all as it melts. Sprinkle nuts on top. Cool until set. Break into serving size pieces.