Preheat oven to 350 degrees F and grease loaf pan with your choice of oil (coconut oil works best).

Measure hemp seeds and then put them in a food processor to grind them down a bit.

In a large bowl, add almond flour, cassava flour, coconut flour, ground hemp hearts, baking soda and sea salt. Mix well.

Add melted butter to bowl and mix with a spatula until it is somewhat crumbly (which just means the butter is fully integrated into the flour mixture).

In a small bowl, add eggs, maple syrup and apple cider vinegar. Mix well.

Add egg mixture to flour mixture and continue mixing with a spatula. Don't overmix, but mix until the larger chunks (and sliminess from eggs) are gone.

Add mixture to prepared bread pan and bake for 30 minutes.

Remove from oven and allow to cool for 10 minutes before removing from the loaf pan.