In a medium bowl, stir together the almond flour, ground flaxseed, and water until combined. You should be able to form the mix into a ball and have it hold its shape.
Place the ball on a large piece of parchment paper and pat it out into a 1-inch thick circle.
Place another large piece of parchment paper over top of the dough and roll out to an even thickness, about ⅛ inch.
Carefully peel off the top sheet of parchment and sprinkle flaky sea salt and additional toppings over top. Place the parchment back over top and roll very lightly to press in the toppings. Remove the parchment.
Using a pizza cutter, pastry wheel, or a knife, cut into 2-inch squares or your preferred shape. Leave the dough as is (don't attempt to move the pieces around), the crackers will snap apart nicely once baked. If desired, use the skinny end of a chopstick to create a decorative hole in the center of each cracker.
Slide the parchment paper onto a large baking sheet and bake until evenly golden brown, about 16-22 minutes. Check the crackers often starting at about the 15 minute mark and remove any browned crackers to a wire rack to cool while the remainder of the batch finishes baking.
Notes
Storage: Store in an airtight container at room temperature for up to 5 days.Don't forget your favourite toppings! Here are a few of my favourites: sesame seeds, fresh chopped rosemary, cracked black pepper, or everything bagel seasoning (skip adding flaky salt if your everything seasoning includes salt).Nutrition Info: Per 8 crackers, 130 Calories; 6.3g Protein; 9.5g Fat; 1.66g Net Carbs.