Preheat your oven to 350°F. In a mixing bowl, combine almond flour, cocoa powder, and salt. Add melted coconut oil, maple syrup, and vanilla extract. Mix until a dough forms. Press into a tart pan and prick the bottom with a fork.
In a saucepan over low heat, combine dark chocolate chips, coconut milk, maple syrup, vanilla extract, and sea salt. Stir until melted and smooth.
Pour the chocolate filling into the cooled crust and spread evenly. Chill in the refrigerator for at least 120 minutes.
Once chilled, slice the tart into wedges and serve with desired toppings.