Combine ½ cup almond flour, xanthan gum, and salt in a medium size mixing bowl. Mix well.
Create a well at the bottom of the bowl and add in the egg and olive oil. Mix to combine. The ingredients will begin to come together to form a dough. If the dough is sticky when touched, add the extra 1 Tablespoon of almond flour and mix together.
Form a flat disc with the dough and press between two pieces of parchment paper. Roll the dough out to about a 9" circle if you are using an 8" pizza pan. Carefully remove the top layer of parchment and place the baking pan on top of the dough. Flip it over and remove the second layer of parchment.
Fold any excess over to form a slightly thicker edge. Bake in preheated oven on pizza pan for 5-7 minutes or just until the crust starts to turn golden brown.
Remove and let cool on a cooling rack.
Topping & Baking
Top the pizza crust with marinara sauce and your desired pizza toppings. Bake in preheated oven on 450℉/230℃ for 5-8 minutes or until the cheese has melted. You can bake on the pizza pan, but for a crisper crust cook directly on the oven rack.
Place pizza on cooling rack for a few minutes. Cut and Serve!
Topping & Freezing
Once the crust has cooled completely, top with marinara sauce and your pizza toppings. Freeze uncovered on pizza pan for several hours. Remove from the pizza pan and place the frozen pizza into a freezer bag for storage or wrap well with plastic wrap.
To Bake from Frozen, preheat the oven to 400℉/200℃ and bake for 8-12 minutes or until the cheese has fully melted and the pizza is hot and bubbly.