Ingredients

Instructions

  1. In a large saucepan cook sweet potatoes, covered, in enough boiling salted water to cover for 30-40 minutes or until tender; drain.
  2. Preheat oven to 350 degrees Fahrenheit.
  3. Peel potatoes; mash on low speed of electric mixer (do not add butter or milk).
  4. Add banana, butter or margarine, lemon peel, and salt. Beat until fluffy.
  5. Add yolks; beat well. Carefully fold stiff-beaten egg whites into potato mixture; turn into a buttered 1 1/2-quart casserole.
  6. Bake, covered, at 350 degrees Fahrenheit for 20 minutes; uncover and bake 25 minutes.