Heavenly Lemon Squares

Preheat oven to 350 degrees Fahrenheit (175 degrees Celsius). Grease a 9x13-inch pan and set aside.

In a large mixing bowl, beat 3/4 cup unsalted butter and 2/3 cup confectioners' sugar until blended.

Slowly beat in 1 1/2 cups all-purpose flour.

Press the flour mixture into the bottom of the greased pan and bake for 18-20 minutes, or until golden brown.

While the crust is baking, whisk together 4 large eggs, 1 1/3 cups granulated sugar, 2 teaspoons grated lemon zest, 2/3 cup freshly squeezed lemon juice, 1/3 cup milk, and 3 tablespoons of all-purpose flour until frothy in a small bowl.

Pour the lemon mixture over the hot crust.

Bake for an additional 18-20 minutes, or until the top is lightly brown and the filling is set.

Allow the lemon squares to cool completely on a wire rack.

Dust the top with additional confectioners' sugar.

Cut into squares and refrigerate any leftovers.