Preheat the oven to 400. Line a baking sheet with parchment paper.

Combine the hot water and gelatin in a small, heatproof bowl. Stir until the gelatin is dissolved. Set aside.

In another bowl, mix together the tapioca, coconut flour, salt and baking soda.

Add the fat to the flour mixture and mix well. Add the vinegar and gelatin water to the flour mixture and stir to combine.

Set the dough on the lined baking sheet and press it into a circle that's about 1/4 to 1/3 inch thick.

Bake the crust for 15 minutes and remove from the oven. Add toppings of choice and bake for 15 more minutes, until golden brown.