Pre-heat over to 450 degrees.
Combine the flours and salt in a bowl. Add the olive oil and water and stir until you have a cohesive ball of dough (you’ll need to use your hands to really get it all together). Set aside for 15-20 minutes.
While you wait, mix up a spice/seed blend (skip this if you want plain, salted crackers). Sometimes, I’ll swap out rosemary for the fennel and add some salt to this combo for a slightly different take.
After the dough has rested a bit, divide it into two pieces, flour a board and rolling pin and roll the dough out until it’s as thin as you can get it. Put on a parchment-covered cookie sheet, brush with water and sprinkle with your spice/seed mixture or salt (kosher or a coarse sea salt is best here). Use a pizza cutter to slice the dough into squares or diamonds and bake for 10-12 minutes).
Let the crackers cool completely and then store them in an airtight container. If you don’t eat them all up, they’ll last at least a week on the counter. They are also delicious sprinkled with parmesan cheese.