In a measuring cup, combine the warm water, sugar and yeast in a glass measuring cup. Whisk to combine. Let proof for 5-10 minutes.
In the bowl of a stand mixer fitted with the paddle attachment, add the gluten-free flour, almond flour, psyllium husk powder, baking powder and salt.
With the mixer running on low, add the yeast mixture along with the olive oil. Increase the speed to medium-high and mix for 5 minutes. The dough will resemble thick cookie dough, this is normal.
Using an oiled rubber spatula, scrape down the bottom and sides of the bowl and mix again until well-combined.
Scoop the dough into the prepared pan and smooth the top with wet hands. Cover with oiled plastic wrap and let rise in a warm place for 45-60 minutes.
Place a pizza steel or pizza stone in the oven. Preheat the oven to 425°F. Line a 12-inch round pizza pan with a circle of parchment paper. Spray the parchment paper with cooking spray.
Using oiled or wet hands, press the dough into the pan. The dough will shrink slightly as it bakes, so press the dough as thin as you can to cover the pan. Let rise for another 10 minutes.
Bake the crust without toppings for 15-20 minutes. Remove from the oven and add your desired toppings.
Slide the pizza off the parchment paper and pan directly onto the pizza steel. Bake for another 10-15 minutes until the toppings are bubbly and cooked to your liking.
Remove from the oven and let cool for 5 minutes before slicing.