Move the oven rack to the middle position and preheat oven to 425 degrees F.
Spray a rimmed 18” x 13” sheet pan with cooking spray, this will keep the parchment in place.
Cut a piece of parchment paper to cover the bottom completely, about 16 x 20 inches. Place on the sheet pan and spray more oil on the parchment, and around the sides of the sheet pan.
Add almond flour, tapioca flour, baking powder, and salt and whisk together.
2 cups almond flour, 2 cups tapioca, 3 teaspoon baking powder, Pinch salt
Add in eggs, apple sauce, and vanilla extract.
8 eggs, 1 cup apple sauce, 1 teaspoon vanilla
Add in add-ins, if you add them into your batter like I do! - SPRINKLED ON TOP
Add ins: to 1/4 section of sheet pan
Pour the batter into the prepared baking sheet. Spread the batter evenly with a spatula then tap the sheet pan on the counter a couple times to settle the batter.
Bake for 10 minutes, rotating the pan halfway through.
Allow to cool for 5 minutes in the pan then, place a large cutting board over the top of the pan and flip the pancakes onto cutting board. Cut into 16 squares and serve immediately.