Add the ingredients to a bowl and knead to combine until the dough is smooth. Form a ball out of the dough and cover the bowl with plastic wrap or a silicone bowl cover. Let it sit for an hour or two before proceeding.
Very lightly dust a sheet of parchment paper and your rolling pin with flour. Smush the dough into a rough rectangular shape, then roll out with a rolling pin until it’s about 1/16 inch thick. It’s fine if the edges are a little rough and uneven.
Gently move the parchment paper onto a large baking sheet. Use a knife to slice the crackers into desired shapes. Sprinkle with sea salt and gently press the salt into the dough. Use a fork to prick little holes into each cracker.
Bake crackers at 350°F for about 20-25 minutes or until the crackers are lightly browned.
When crackers have finished baking, remove them from the oven and let them cool. Store them in an air-tight container for a week or so, if they last that long.