3 c. mashed sweet potatoes
1 c. granulated sugar
1 tsp. vanilla
1/2 c. melted butter
2 eggs, beaten
1 c. brown sugar
1/2 c. flour
1 c. chopped walnuts
1/2 c. butter

Mix first 5 ingredients together. Top with a mixture of the last 4 ingredients. Bake at 350° for 30 minutes. You can put a layer of marshmallows on top for the last 5 minutes of cooking.