Directions

Preheat the oven to 350˚F.

For the crust, cream the butter and sugar until light and fluffy. Whisk the flour and salt. With the mixer on low, add the flour/salt mixture to the butter/sugar mixture until just mixed. Dump the dough onto a well-floured board and gather it into a ball. Flatten the dough with floured hands and press into a 9×9 baking pan, building up an edge on all sides. Chill for about 20 minutes.

Bake the crust for 15 to 20 minutes, until very lightly browned. Let cool on a wire rack. Leave the oven on.

For the filling, whisk together the eggs, sugar, lemon zest, lemon juice, and flour. Pour over the crust and bake for 30 to 35 minutes, until the filling is set. Let cool to room temperature.

Cut into triangles or squares and dust with icing sugar.