These are the best Lemon Bars.
2 1/2 cups all-purpose flour
1 cup unsalted butter, at room temperature
1/2 cup powdered sugar
3 cups granulated sugar
1 cup fresh lemon juice
1/2 cup freshly grated lemon zest
1 teaspoon baking powder
Coat a 9″ x 13″ baking pan with cooking spray. In a large bowl, stir 2 cups flour together with the butter and powdered sugar to make a dough. Spread the mixture into the prepared pan, building up a 1″ edge on all sides. Bake for 15 minutes or until lightly browned; remove from the one and place the pan on a wire rack. (Leave the oven on.) In a large bowl, use an electric mixer to mix the eggs with the granulated sugar, lemon juice, and lemon zest; set aside. In a small bowl, mix the remaining 1/2 cup flour with the baking powder. Add the flour mixture to the egg mixture and mix well. Pour the mixture over the prebaked crust. Bake for 25-30 minutes or until golden around the edges and set in the middle. Let the bars cool on a wire rack for 10 minutes before refrigerating. Cut into squares and sprinkle with powdered sugar.
Recipe from Sweet on Texas Cookbook