Mix the dry ingredients together well and then add the oil and water. Mix the mixture with a spoon into an even dough and spread it on a baking sheet lined with baking paper (the specified amount is enough for one baking sheet).
Bake at 170 ° for 60 minutes. After the first 15 minutes, cut the sheet of dough into slices of the desired size with a pizza knife. A sheet makes 12 slices for me.
Tip: After the hour I always look in the oven and remove the slices one by one, which are already crispy, because depending on how the oven bakes, not all of them brown evenly.