In a large skillet cook pork, onion, and celery until meat is brown and vegetables are tender. Drain well. Stir flour, savory, paprika, chicken bouillon granules, salt, and pepper into meat mixture. Stir in water. Cook and stir until thickened and bubbly. In a mixing bowl sprinkle brown sugar over apples; stir to coat.
In a 2-quart casserole combine apples and meat. Cover; bake at 425 degree F for 20 minutes. Top with Sweet Potato Biscuits. Bake, uncovered, about 20 minutes more or until wooden toothpicks inserted into biscuits come out clean.
In a medium mixing bowl stir together all-purpose flour; baking powder; and salt. Cut in shortening until the mixture is the size of small peas. Add sweet potatoes, drained and mashed (2/3 cup); and milk; stir just until combined. Drop in 6 mounds onto hot stew. Makes 6 servings.