Whisk egg in large bowl then pour in maple syrup, melted coconut oil, cashew butter, vanilla and almond milk to whisk again.
Stir in almond flour, baking soda, cinnamon until well combined. Fold in chocolate chunks, leaving several chocolate chunks aside.
Coat 12-inch cast iron skillet with coconut oil then pour batter into base and spread out evenly using a silicone spatula. Place the last several pieces of chocolate over the top, sprinkle sea salt, then place in the oven for 20--25 minutes.
Recipe Notes
Cashew butter can also be substituted for almond butter if desired.