Preheat the oven to 350 degrees and grease a 9 x 13 inch pan.
In a small bowl, combine the flour, cocoa powder, and salt. Set aside.
Melt the chocolate and the coconut oil. Cool slightly.
Boil 2 cups of water in a small saucepan. Simmer the dates for about 3 minutes to soften them.
In a food processor or blender, puree the dates, the banana, and 2 tablespoons of the date water.
In a large bowl, combine the maple syrup, eggs, and vanilla. Add the dates, bananas, melted chocolate and coconut oil. Stir to combine well.
Add the dry ingredients to the wet ingredients and mix well. Transfer the batter to the baking pan.
Bake for 25 minutes, or until a toothpick inserted in the center comes out almost clean. Don’t overcook them or they will be dry.