4 c. brown sugar
2 c. canned milk
2 tbsp. white Karo syrup
4 tbsp. butter
2 tsp. vanilla
4 tbsp. peanut butter

Combine all ingredients in large pan except vanilla and peanut butter. Bring to a boil and boil steadily until a soft ball forms in cold water. Add peanut butter and vanilla and stir until mixture starts to thicken, then pour into buttered oblong pan.