Mix all dry ingredients, and add seeds and nuts you like or you have at home.
Ad coconut oil, chestnut puree and maple syrup to a pan and heat until everything is dissolved and a smooth mix
Pour obvier the dry ingredients and mix until everything is covered
Add to a baking dish and press firmly
Bake for 20-30 minutes at 150 degree
Let cool down in the baking dish
Release from the dish (best in one piece) and then break in pieces
You can bake it again for 10 minutes at 150 degree (just keep an eye on it)
Let cool completely before adding it to a jar or similar