2 c. brown sugar
1 c. white sugar
1 c. evaporated milk
1/4 c. corn syrup
1 tbsp. butter
1 tsp. vanilla
3 heaping tbsp. marshmallow
1 c. chopped walnuts

Combine first 4 ingredients and cook on high heat 10-12 minutes (or 230 degrees) until when dropped in water, it forms a soft ball. Remove from heat, add butter and marshmallow and beat by hand until it begins to thicken. Stir in walnuts and pour into 8 x 8 inch buttered pan.