Preheat oven to 350 degrees.
In a large mixing bowl, combine dry ingredients: coconut flour, almond flour, flax/chia/hemp seed, baking powder, salt.
In a smaller mixing bowl with an electric mixer, combine wet ingredients: butter and eggs.
Gently fold wet ingredients into dry ingredients.
Place dough mixture into a small pan.
Bake in oven for 30-40 mins. Stick a fork in the middle of it to make sure it’s done. If it comes out clean, then it’s done. If it comes out with dough on it, then it needs more time.