Perfect Lemon Squares

Step 1
Preheat an oven to 350 degrees F (175 degrees C).

Step 2
Place 1 1/3 cups flour, 1/4 cup white sugar, 1 tablespoon lemon zest, and the ground almonds in a mixing bowl. Add the softened butter and mix with your hands until the mixture resembles coarse crumbs. Press into the bottom of a 9-inch square baking dish.

Step 3
Bake in the preheated oven until the crust is golden brown, about 20 minutes.

Step 4
While the crust is baking, stir together the brown sugar, 1/4 cup white sugar, 1 tablespoon flour, and the baking powder in a bowl. Add the eggs, coconut, lemon zest, and lemon juice; whisk until the sugars have dissolved; pour over the crust.

Step 5
Return to the oven and bake until the lemon filling has firmed, about 15 minutes. Cool completely in the pan before cutting.