Mix almond flour, protein powder, coconut flour, cinnamon, and sea salt. Add melted coconut oil, almond butter, maple syrup, and vanilla; stir into a soft dough.
Press dough into an 8x8-inch pan lined with parchment; freeze while preparing the date layer.
Blend dates, maple syrup, almond butter, vanilla, sea salt, and almond milk until smooth. Spread over the base.
Melt chocolate with coconut oil in 20-second intervals; pour over the date layer and tilt to spread evenly. Freeze for 2-4 hours.
Sprinkle with flaky sea salt, slice into bars, and store in the fridge or freezer.
Notes
Keep the bars refrigerated for a soft texture or frozen for a firmer bite.