Heat 2 cups of filtered water until medium cold and put in a large bowl with 200g of rolled oat. Set a side.
In your high speed blender, put 60g of rolled oats and blend until it turns to flour. Put a side in a content.
In you high speed blender, put dates, banana, salt, and a little bit of water until it’s blended smooth and thick.
With a cheesecloth, drain the water from the soaked rolled oats. Press it well and remove most of the remaining water. Put them in a large bowl.
Add all the rest of the ingredients: 100g of un-soaked rolled oats, oat flour, raisins, pumpkin seeds, hemp seeds and blended mixture. Mix well.
Create wafers shape cookies in a non-sticky dehydrator sheets. I like to make them about 1/2 an inch of thickness so that it’s still smooth inside.
(Optional) Sprinkle some chia seeds on one side of the wafers.
In a dehydrator at 110° for about 8 hours more or less, depending on how hard or tender you want them.