Preheat oven to 350F.
Add the dry ingredients (coconut flour, almond flour, arrowroot flour, baking soda, cinnamon) to a bowl and mix well.
Next, add the wet ingredients (coconut milk, butter, honey and eggs) to the bowl and mix well.
Pour the batter into a greased 9-inch cake pan.
Chop the pecans in a food processor until finely chopped.
Add the finely chopped pecans to a bowl along with the remaining topping ingredients and using your hands, mix well. Sprinkle this on the top of the cake.
Bake at 350F for 30 minutes.