Preheat the oven to 350°F (180°C). Prepare a large baking sheet lined with baking paper.
Combine all dry ingredients together in a bowl and slowly add the water, mixing until a dough forms.
Place the dough on the lined baking tray and using your fingers, press it out to an even layer ¼ inch (5mm) thick. If it breaks up just press it back together.
Using a sharp knife, score the dough into the desired cracker shapes as this helps them to break evenly once they are baked and cooled.
Place the tray into the hot oven and bake the crackers for 30-35 minutes. Remove the tray from the oven and set aside to cool completely, before breaking into individual crackers.
