1/4 cup (1/2 stick) butter
1/2 cup milk
1 tsp. cinnamon
1/2 tsp. salt
6 medium size sweet potatoes, cooked and mashed (or 1 can sweet potatoes 1 lb. 13 oz.)
2 cups miniature marshmallows

Add butter, milk, cinnamon and salt to mashed sweet potatoes. Beat until smooth, light and fluffy. Spoon into greased 1 1/2 quart casserole. Cover with marshmallows. Bake at 350°F for 20 to 30 minutes.