preheat oven to 160 degrees Celsius 320 Fahrenheit turbo mode.
Grease a baking tray well.
Put dry ingredients in a blender and process for about half a minute until you get a powder. If there are a few oat crumbs left, that's fine.
Add the wet ingredients and process for a few more seconds until you get a sticky and slightly liquid dough. Taste and adjust seasoning if necessary.
Transfer the dough to the greased baking pan (do not line it with baking paper); Wet your hands and flatten the dough so that it covers the bottom of the pan as evenly as possible.
Put in the oven and bake for ten minutes.
Take out and cut with a knife into 18 - 20 rectangles. Return to the oven and bake for about another half hour until the crackers are brown and hard to the touch. Let cool for a few minutes before removing the crackers from the baking pan.