INGREDIENTS
1 large cooking apple, peeled and quartered
2 cups mashed sweet potatoes
2 eggs, separated
1/2 teaspoon vanilla extract
Vegetable cooking spray
1 1/2 teaspoons reduced-calorie margarine
Apple slices (optional)
Lemon juice (optional)
DIRECTIONS
Place apple quarters in a saucepan; cover with water, and bring to a boil. Reduce heat, and simmer 5 to 8 minutes or until apples are tender. Drain.
Position knife blade in food processor bowl; add apples. Top with cover, and process until smooth. Combine apples, sweet potatoes, egg yolks, and vanilla; stir well, and set aside. Beat egg whites (at room temperature) until peaks are stiff but not dry. Fold into sweet potato mixture. Pour mixture into a 1 quart casserole coated with cooking spray; dot with margarine. Bake at 350F for 40 to 45 minutes or until browned. Garnish with apple slices dipped in lemon juice, if desired.
Yield: 8 servings (about 121 calories per 1/2 cup serving)