Preheat the oven to 180C/350F.
Line a baking tray with parchment paper.
Put the tablespoon of flaxseed into a small bowl with 3 tablespoons of water, mix and allow to set for 5 minutes to make a flax egg.
In the meantime, bake the almonds on a skillet over medium heat until you see them turning slightly brown.
Put the almonds into a blender or food processor and blend until you still have visible almond bits.
Put all of the dry ingredients into one large bowl - coconut sugar, almonds, flour, oats, salt and baking powder. Gently mix with a wooden spoon until combined.
Now add the wet ingredients to the dry ones one by one - first the coconut oil and at last the flax egg. Mix until you have a nice oatmeal cookie dough.
Take one tablespoon of the cookie dough at a time and make a round ball out of it. If you have a cookie scoop or an ice cream scoop, you can use those as well.
Place on the prepared baking sheet (cookie sheet) and gently press until you have a round cookie.
Continue with the rest of the cookie dough.
Bake for about 10-12 minutes until the cookies turn golden brown around the edges.
Once baked, allow to cool for about 10-15 minutes prior to serving. You can also transfer to a wire rack or cooling rack to cool.