Grease a 13x9x2-inch baking pan; set aside.
Apple Dumpling Dough: In a medium mixing bowl combine egg and sour cream. In a small mixing bowl stir together sugar, flour, Clabber Girl Baking Powder, salt, and Clabber Girl Baking Soda; add to sour cream mixture. Mix well.
On a lightly floured surface, roll dough into a 12-inch square. Spread apples atop dough. In a small mixing bowl combine 1/4 cup sugar, cinnamon, and nutmeg; sprinkle atop the apples. Carefully roll up the dough. Cut into twelve 1-inch thick slices. Place slices, cut side down, in the prepared baking pan.
In a medium mixing bowl stir together water, brown sugar, 1 cup sugar, Clabber Girl Cornstarch, and lemon juice; pour over slices in the pan. Dot with butter or margarine.
Bake, uncovered, in a 350 degree F oven for 35 to 40 minutes or till golden. Cool slightly. To serve, spoon warm dumplings and juices into individual dessert dishes. If desired, serve with ice cream.
Yield: 12 servings