Grind oats and millet in a high-speed blender until they form a fine flour. Transfer to a large bowl and stir the baking powder.
Blend date paste, applesauce and bananas. If you are unsure about the quantity of bananas, blend date paste and applesauce first and slowly add the bananas while the blender is running. The mixture should reach the 3 cups line.
Mix dry and wet ingredients and transfer the dough to a silicon pan.