Ingredients: • ½ cup butter, softened • ¼ cup sifted confectioners' sugar • 1 cup sifted all-purpose flour • 1 cup white sugar • 2 eggs • 3 tablespoons all-purpose flour • 3 tablespoons fresh lemon juice, or more to taste • 2 teaspoons grated lemon peel • ¼ teaspoon salt • 3 tablespoons confectioners' sugar Directions: Step 1 Preheat oven to 350 degrees F (175 degrees C). Grease an 8x8-inch baking pan. Step 2 Combine butter with 1/4 cup confectioners' sugar in a bowl until smooth; stir in 1 cup flour. Press dough into prepared baking pan; pierce crust with fork in several places to prevent crust from puffing up during baking. Step 3 Bake crust in the preheated oven until slightly golden brown, 10 to 15 minutes. Let cool. Step 4 Whisk white sugar and eggs in a bowl; st