Old-Fashioned Peach Cobbler
["1/2 c. firmly packed light brown sugar", "1/2 tsp. ground cinnamon", "1 tsp. grated lemon rind", "1 Tbsp. lemon juice", "4 c. (about 2 1/2 lb.) sliced peeled peaches", "3/4 c. all-purpose flour", "1/2 c. whole wheat flour", "1 Tbsp. baking powder", "1/4 c. (1/2 stick) reduced calorie margarine, softened", "1/4 c. granulated sugar", "2 egg whites, lightly beaten", "1/2 c. low-fat milk", "1/2 tsp. vanilla"]
["Preheat oven to 375\u00b0.", "Lightly grease 8 x 8 x 2-inch baking dish.", "Combine brown sugar, cinnamon, lemon rind and juice in large bowl.", "Add peaches; toss to mix.", "Transfer to prepared baking dish. Combine flours and baking powder on piece of waxed paper.", "Beat together margarine and sugar in medium-size bowl until light and fluffy.", "Beat in egg white.", "Add dry ingredients alternately with milk and vanilla, stirring just to combine.", "Drop batter by spoonfuls over peach mixture; spread gently.", "Bake in preheated 375\u00b0 oven for 25 to 30 minutes or until peaches are tender and top is golden brown.", "Serve warm."]
["brown sugar", "ground cinnamon", "lemon rind", "lemon juice", "peaches", "all-purpose", "whole wheat flour", "baking powder", "margarine", "granulated sugar", "egg whites", "low-fat milk", "vanilla"]