Mix together the oat flakes, spelled flour and water and leave to soak for 1 hour. Preheat the oven to 150 ° C.
Mix in all other ingredients and spread on 2 greased trays. Put in the oven. Take out after 15 minutes and cut into pieces. Bake for at least 20 minutes. The crispbread should no longer be soft.
Possibly remove the edge pieces earlier. Let cool on a wire rack. The bread will keep for a few weeks in a tightly closed tin.