Preheat oven to 350 F. In a bowl, whisk together the almond flour, tapioca flour, baking powder, baking soda, and salt. Set aside.
3 ½ cups almond flour, 1 ½ cup tapioca flour, 2 teaspoon baking powder, 1 teaspoon baking soda, ¼ teaspoon sea salt
In a separate bowl, add the coconut milk and apple cider vinegar and mix well. Then add the eggs, vanilla, coconut sugar, and bourbon, mixing until fully incorporated.
1 ½ cup coconut milk, 1 tablespoon apple cider vinegar, 3 eggs, 1 teaspoon vanilla, ⅔ cup coconut sugar, 3 tablespoon bourbon
Slowly fold in the flour mixture into the bowl with the coconut milk adding about ⅓ of the mixture at a time, folding until no flour clumps remain.
Pour batter into a greased bundt cake pan and bake for 35 - 45 minutes until the edges begin to pull away from the sides and you can insert a toothpick into the middle part of the cake it comes out clean. Let cool for at least 15 minutes before removing from the cake pan.
Once cooled, prepare your glaze by melting the coconut butter**. This is best done using a double boiler or you can simply bring a pot of water to a simmer, add the coconut butter to a sauce pan, and place on top of the pot of simmering water. Continue to stir until melted (add a tablespoon or two of coconut oil if needed to thin out the coconut butter). Once melted, pour coconut butter into a bowl and stir in the vanilla and bourbon and immediately pour over bundt cake.
½ cup coconut butter, 1 - 2 tablespoon coconut oil, 1 teaspoon vanilla, 2 tablespoon bourbon*
Serve cake immediately or store in an airtight cake container and keep up to 5 days.