Cook sweet potatoes in boiling water to cover 35 to 40 minutes or until tender; drain and let cool. Peel and mash potatoes. Add 1/2 cup orange juice and next 6 ingredients; stir well, and set aside. Beat egg whites at high speed of an electric mixer until soft peaks form. Gradually add 1/4 cup brown sugar, 1 tablespoon at a time, beating until stiff peaks form. Gently stir one-fourth of egg white mixture into sweet potato mixture. Gently fold remaining egg white mixture into sweet potato mixture. Spoon mixture into an 11- x 7- x 2-inch baking dish coated with cooking spray; set aside. Combine remaining 1/4 cup brown sugar, pecans, flour, and cinnamon; stir well. Combine apple and remaining 1 tablespoon orange juice; add to pecan mixture, stirring well. Sprinkle evenly over sweet potato mixture. Bake at 350? for 30 to 35 minutes or until puffed. Let stand 10 minutes before serving. Yield: 12 servings (184 calories and 13% fat per 1/4-cup serving). Protein 3.0 / Fat 2.6 (Saturated Fat 0.3) Carbohydrate 38.1 Fiber 3.7 / Cholesterol 0 / Sodium 78 Recipe by: Healthy Heart Cookbook Posted to recipelu-digest Volume 01 Number 421 by susan on Dec 30, 1997