1. Preheat the oven to 400. 2. Lightly grease two large cookie sheets. Combine the dry ingredients, and then stir in the water, oil and mix until a smooth dough forms. 3. Divide the dough in half and flatten each half on a cookie sheet. Use a small rolling pin or even your fingers for a rustic, uneven look. Once the dough is spread thin, use a sharp knife or a pizza cutter to cut the dough into squares. The elasticity in the dough will make the crackers shrink slightly and pull away from each other; this makes them easy to bake without sticking together. 4. Brush lightly with an egg wash (one egg white and 2 tablespoons of water) or spray lightly with olive oil. 5. Sprinkle with the topping of your choice. Experiment with your favorite flavors, or try one of these variations: Chopped rosemary and sea salt, sesame seeds, poppyseeds and onion salt, Parmesan cheese 6. Bake for 10-12 minutes until the crackers are golden and crispy.