Preheat oven to 400°F. Grease ... sour cream and egg; stir in milk gradually. Stir in Bisquick just until moistened. Spread half ... sugar and flour together.
Combine egg, sugar, lemon peel and milk; mix well. Stir in Bisquick mix just until moistened. Fold ... smooth. Drizzle over cake. Cut into wedges. Makes 6 to 8 servings.