Add almond flour, coconut flour, xanthan gum, baking powder and salt to food processor. Pulse until thoroughly combined. Note: you can alternatively whisk everything in a large bowl and use a hand or stand mixer for the following steps.
Pour in apple cider vinegar with the food processor running. Once it has distributed evenly, pour in the egg. Followed by the water. Stop the food processor once the dough forms into a ball. The dough will be sticky to touch.
Wrap dough in cling film and knead it through the plastic for a minute or two. Think of it a bit like a stress ball. Allow dough to rest for 10 minutes (and up to 3-4 days in the fridge).
If cooking on the stove top (tortillas, naan)
Heat up a skillet (preferably) or pan over medium heat. You can test the heat by sprinkling a few water droplets, if the drops evaporate immediately your pan is too hot. The droplets should ‘run’ through the skillet.
Transfer to skillet and cook over medium heat for just 3-6 seconds (very important). Flip it over immediately (using a thin spatula or knife), and continue to cook until just lightly golden on each side (though with the traditional charred marks), 30 to 40 seconds. The key is not to overcook them, as they will no longer be pliable or puff up.
If baking (pizza, cinnamon rolls)
Preheat oven to 350°F/180°C. Line a baking tray with a baking mat or parchment paper. If making pizza, you'll want to blind bake the crust without toppings until lightly golden (10-13 minutes). Add the toppings and bake for an additional 10-15 minutes.
If frying (pasta, ravioli)
Heat up butter or oil in a skillet or pan over low heat. Cook pasta until it just begins to get some color, I found this gave the most 'al dente' texture (soft but with a bite). Feel free to make a test with one piece.
I know you guys need to substitute often (allergies, preferences etc), so this should come in handy:
Almond flour can be substituted with sunflower seed flour on a 1-to-1 ratio. Given its similar fat and protein content to almond, this really is the best sub out there for those of you with nut allergies! Just note that its generally not ground as fine as almond and it has a different flavor profile, but I know you guys love it as you report back on it often.
Coconut flour is a bit of a trickier one to sub as its more unique in its behavior, but still totally doable (as I found out in the naan recipe!). In fact, when yeast is involved, oat fiber had the best texture out of the lot, arguably as it is a grain. Oh, and the neat thing about oat fiber is that it’s virtually carb-less (I’m assuming there’s a trace, but labels read 3g carbs – 3g fiber = 0 net carbs!). Also keep in mind that brands vary a lot here and Lifesource seems to be the best (no weird aftertaste, etc).
Xanthan gum is the trickiest of the lot to sub, because of its totally unique ability to act like a binder to replace gluten. Which means that for best results I suggest not trying to sub this one. Having said that, in case of allergies or sensitivity (or if paleo), you can use 1 tablespoon of psyllium husk powder instead. The dough won't be a as malleable, but results will still be solid.