1. Get Ready: Preheat your oven to 350°F (175°C).
2. Mix Dry Ingredients: In a food processor, combine the almond flour, oat fiber, sweetener, and xanthan gum. Pulse briefly until they're well mixed.
3. Add Cold Fats: Toss in the cold butter and cream cheese cubes. Pulse again, just until the mixture looks like coarse crumbs – be careful not to overmix!
4. Bring it Together: Add the room temperature egg and pulse until the dough just starts to clump together. It's important not to overmix here to keep the butter and cream cheese cold.
5. Chill Time: Turn the dough out onto plastic wrap, form it into a disk, and cover. Pop it into the fridge for at least 1 hour, or even overnight, to firm up. This makes it super easy to handle.
6. Roll it Out: When ready to use, place the chilled dough between two sheets of parchment paper. Use a rolling pin to roll it out to the size of your pie dish. If it tears a little, don't worry, you can easily press it back into shape!
7. Form the Crust: Gently transfer the dough to your pie dish. You can leave the edges plain or crimp them with your fingers for a classic look. Then, use a fork to prick holes all over the bottom of the crust to prevent it from puffing up during baking.
8. Bake: Bake the crust on the center rack of your oven. If your pie filling doesn't need baking, bake for 15-18 minutes until golden. If your filling will be baked, pre-bake the crust for only 5-10 minutes.