For the crust:For baking I’m using the new gluten-free flour blend I just got from Simply Gluten Free
You could use Bob Red Mills All Purpose Gluten Free Flour too
1/2poundunsalted butterat room temperature
1/2cupgranulated sugar
2cupsall-purpose gluten-free flour
1/8teaspoonkosher salt
For the filling:
6extra-large eggs at room temperature
3cupsgranulated sugar
2tablespoonsgrated lemon zest4 to 6 lemons
1cupfreshly squeezed lemon juice
1cupgluten free flour
confectioners’ sugarfor dusting
Instructions
Preheat the oven to 350 degrees F.
For the crust, cream the butter and sugar until light in the bowl of an electric mixer fitted with the paddle attachment. Combine the flour and salt and, with the mixer on low, add to the butter until just mixed. Dump the dough onto a well-floured board and gather into a ball. Flatten the dough with floured hands and press it into a 9 by 13 by 2-inch baking sheet, building up a 1/2-inch edge on all sides. Chill.
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.