Preheat the oven to 350 degrees F. Line an 8×8-inch pan with parchment paper, leaving some hanging over on the sides.
Bake the Crust: In a bowl, mix the almond flour, coconut flour, and salt.
Stir in maple syrup, melted butter and vanilla until a soft dough forms.
Press the mixture firmly and evenly into the prepared pan.
Bake for 12 minutes, or until lightly golden along edges. Remove from the oven. Let cool slightly.
Make the Date “Caramel”: Add dates and almond milk to a small saucepan. Simmer over medium-low heat for 5-7 minutes, stirring occasionally, until the dates are very soft.
Transfer dates and remaining milk + 1 tbsp milk to a food processor (or use an immersion blender) to blend the dates, vanilla and a pinch of salt until thick and smooth.
Spread evenly over the warm crust.
Add the Chocolate Layer: Melt the chocolate chips with coconut oil until smooth.
Pour over the date layer and gently spread into an even layer.
Sprinkle lightly with flaky sea salt (if desired).
Chill & Slice: Refrigerate for 1-2 hours, or until fully set. Slice with a warm knife to help get clean edges. Keep stored in the fridge.