Sweet Potato Casserole
["3 c. cooked mashed sweet potatoes", "1 tsp. vanilla", "2/3 c. sugar", "1/2 c. milk", "2 eggs", "1/2 c. butter", "1 c. brown sugar", "1/3 c. flour", "1/3 c. butter", "1 c. nuts"]
["Sprinkle on top of sweet potatoes.", "Bake at 350\u00b0 for 30 minutes."]
["potatoes", "vanilla", "sugar", "milk", "eggs", "butter", "brown sugar", "flour", "butter", "nuts"]