Preheat oven to 350°F

Beat butter with an electric mixer on medium to high speed for 30 second. Add 1/4 cup of the sugar and best till combined.

Best in the 1 cup flour till crumbly. Press into the bottom of an ungreased 8×8×2-inch baking pan. Bake for 15-18 minutes or just till golden.

Meanwhile, combine eggs, the remaining sugar, the 2Tbsp flour, lemon peel, juice, and baking powder. Beat for 2 minutes or till thoroughly combined. Our over hot baked layer

Bake for 20 minutes or till lightly browned around the edges and center is set.

Cool on a wire rack. If desired, sift powdered sugar over the top. Cut into bars.