1 1/2 c. sugar or 1 1/4 c. sugar + 1 tbsp. white Karo syrup
3/4 c. butter
3 eggs, lightly beaten
1 tsp. vanilla
1 tbsp. vinegar

Cream sugar and butter. Add eggs, vanilla and vinegar. Pour in unbaked crust. Bake at 350 degrees for 30 to 35 minutes.