Blend the flaxseeds and soak with water for about 5 min
Whisk together flaxseeds, sugar, brown sugar, and vanilla in a bowl
Chop the butter and whisk it with the rest of the dough
Stir the dry ingredients in the dough: Baking powder, flour, cocoa, and coconut
Chop the chocolate (into medium pieces) and add it to the dough
Form balls at the size of tennis balls and squeeze the balls flat with your hand. Put a spoonful of hazelnut spread on each piece of flat dough and fold it, so the hazelnut spread is in the middle of the ball. Put the dough on a piece of baking paper and push lightly till the cookie becomes flat
Bake the cookies in the middle of the oven at 180° C for 12-15 min
