Step 1

Preheat the oven to 350°f and line a 9" x 13" baking pan with parchment paper or lightly grease.

Step 2

Cream the powdered sugar and butter together.

Step 3

Add the egg white and mix until smooth.

Step 4

Add the xanthan gum, salt, and gluten free flour and mix until you have a crumbly dough.

Step 5

Press into the bottom of the prepared baking pan and bake for 15-20 mins, until set and golden brown.

Step 6

While the crust is baking, prepare the filling by whisking all the ingredients together until smooth. Gently pour the filling into the crust once it has finished par-baking. Bake the lemon bars for 20-25 mins until the center of the pan has a slight jiggle, but the rest of the pan is set.

Step 7

Let your lemon bars cool completely before cutting dusting with powdered sugar and cutting into squares