For the keto pizza crust

• See recipe video for guidance!
• Add yeast and maple syrup (to feed the yeast, see notes) to a large bowl. Heat up water to 105-110°F, and if you don't have a thermometer it should only feel lightly warm to touch. Pour water over yeast mixture, cover bowl with a kitchen towel and allow to rest for 7 minutes. The mixture should be bubbly, if it isn't start again (too cold water won't activate the yeast and too hot will kill it). 
• Mix your flours while the yeast is proofing. Add almond flour, finely ground flaxseed meal (or more almond flour, see notes), psyllium husk, xanthan gum (more flaxseed meal), baking powder and salt to a medium bowl and whisk until thoroughly mixed. Set aside. 
• Once your yeast is proofed, add in the egg, egg whites, olive oil and vinegar. Mix with a whisk or electric mixer for a couple minutes until light and frothy. Add the flour mixture in two batches, mixing until thoroughly incorporated. You want to mix thoroughly and quickly to activate the xanthan gum, though the dough will become very thick by the end and form into a round. 
• Line a pizza dish or baking tray with parchment paper and grease with olive oil (so the dough doesn't stick while you spread it). Dip a spatula (or your fingers) in water and spread the dough until even in thickness of choice. Fold the edges inward to create thicker edges (optional). Cover with a kitchen towel dome (don't rest the towel directly over the dough), and place in a warm draft-free space for 40-50 minutes until lighter in texture. You don't want the dough to double, but it will puff up noticeably (see pictures for reference). 
• Preheat oven to 350°F/180°C while the dough is proofing. And if you're baking at high altitude, you'll want to bake it at 375°F/190°C. 
• Transfer the dish gently into the oven and blind bake without toppings for 10-14 minutes until lightly browned. Remove from oven, add toppings of choice, and return to oven for 15-18 minutes. 
• Serve right away (extra fresh basil highly suggested!).