Blueberry Bread(Makes 1 Loaf)  
["4 Tbsp. butter, softened", "3/4 c. sugar", "2 eggs, separated", "2 tsp. lemon rind", "1/2 tsp. vanilla extract", "1 1/2 c. flour", "1 c. blueberries", "1 tsp. baking powder", "1/2 c. sour cream"]
["Cream the butter.", "Gradually add sugar.", "Beat until fluffy. Add 2 egg yolks, lemon rind and vanilla.", "Beat.", "Mix 2 tablespoons flour with the blueberries.", "Sift remaining flour and baking powder.", "Add flour, alternating with sour cream, beginning and ending with flour.", "Beat the egg whites.", "Stir in 1/3 of egg whites.", "Fold in remaining egg whites.", "Fold in blueberries.", "Pour into loaf pan.", "Sprinkle with 1 teaspoon sugar.", "Bake at 350\u00b0 for 50 minutes or until toothpick is clean."]
["butter", "sugar", "eggs", "lemon rind", "vanilla extract", "flour", "blueberries", "baking powder", "sour cream"]