Preheat the oven to 350 degrees.
In a food processor, combine the dry ingredients. Pulse to combine. Then add the vegan butter, and start pulsing until the dough starts to get moist. Then while the processor is running, start adding the water slowly. Start with 1/2 C. and drizzle in until the dough pulls away from the sides and starts to form a ball. I used 1/2 C. and 1 Tbsp.
Once the dough is ready, place the dough onto a piece of parchment paper the size of a sheet pan. Press down, then place another piece of parchment paper on top. Roll the dough out with a rolling pin, from the middle out, until it is very thin. Not quite pasta thin, but close. Try to fill all of the parchment paper.
Remove top piece of parchment, and place the dough and bottom parchment paper on a large sheet pan. Cut into 1 inch strips, then cut across in 1 inch strips so you have 1 inch squares. Poke a hole in the center of each cracker, then sprinkle with more salt.
Bake at 350 degrees for 10-15 minutes until the crackers are crisp. Turn off the oven and let cool in the oven for 10-15 minutes.