2 (29 oz.) cans sweet potatoes, drained and mashed 3/4 c. firmly packed brown sugar 1 stick butter, melted 1/3 c. bourbon 1/2 tsp. vanilla 2 c. miniature marshmallows
Combine all but marshmallows, mix well, place in lightly greased 2-quart casserole. Cover and refrigerate overnight.
Next day, let stand out of refrigerator 30 minutes. Bake uncovered in a 350 degree oven for 25 minutes. Bake another 7 minutes after covering top with marshmallows.