Honestly, it’s pretty easy to make your own flax crackers. Mix two cups of ground flaxseeds with a cup of water, add whatever herbs and spices you want, and then spread the dough thinly on a parchment- or silicone-lined baking sheet. Score the dough into thirty-two crackers and bake at 400°F for about twenty minutes. To flavor mine, I use a half teaspoon each of smoked paprika, garlic powder, and onion powder, but you should play around until you find a (salt-free) spice profile you prefer.
