Preheat oven to 350 F

Spray an 8X8X2-inch baking pan with nonstick coating. Set aside. In a small mixing bowl combine the 3/4 cup flour and the 3 tablespoons sugar. Cut in margarine or butter until crumbly. Pat mixture onto the bottom of the prepared pan. Bake in an oven for 15 minutes.

For filling, in a small mixing bowl combine egg and egg white. Beat with an electric mixer on medium speed until frothy. Add the 2/3 cup sugar, the 2 tablespoons flour, the lemon juice, water, and baking powder. Beat on medium speed for 3 minutes or until slightly thickened. Stir in lemon peel.

Pour over hot baked layer in pan. Bake in an oven for 20 to 25 minutes more or until edges are light brown and center is set. Cool completely in pan on a wire rack. Cut into 9 squares; cut each square diagonally to make a triangle. Top triangles with raspberries. Drizzle with the jelly.