Mix all dry ingredients.
Add olive oil and mix with a spoon. Now, add water little by little to make the dough stick. It should be homogeneous and ready to be modelled.
Roll out the dough with a rolling pin (you can use a bottle carefully) between 2 sheets of waxed paper. Use a cookie cutter or cut squares with a knife. The thinner the dough, the crisper the biscuit will be.
Preheat oven to 180°C for 10 minutes. Put the crackers in the oven to bake. Make sure to check on them every 5 minutes so it doesn’t burn! It took 15 minutes to bake here, but this time can vary from oven to oven.