Mix in the dry ingredients: almond flour, coconut flour, cocoa powder, cinnamon, allspice, salt, baking soda and baking powder until smooth. Fold in 1/4 cup chocolate chips.
How to store: Brownies can be kept at room temperature in a container for 1 day. After that they should be kept in the fridge (they are actually really good cold!).
TO MAKE VEGAN: You can try using one or two flax eggs (2 tablespoons flaxseed meal + 6 tablespoons of water mixed together). I think it would work well, but please know I have not tested a vegan version.
Want to make these less sweet? Reduce the maple syrup to 1/4 cup! Instead of maple syrup, feel free to use coconut sugar or organic sugar. I would recommend using 1/2 cup. If you are not vegan, you can use honey, although I find that honey can overpowers the cocoa flavor, so I would not recommend it.