Preheat oven to 350 degrees. Line a mini muffin tin with paper liners.
In a medium sized bowl, whisk together the almond meal, cocoa powder, and baking soda. Add the banana and maple syrup, stir.
Slowly add the almond milk. Start with ⅛ of a cup, and add more if needed. If the banana was large, you may not need more milk. The batter should be thick, but not dry.
Spoon the batter into the mini muffin tin.
Bake at 350 degrees for 15-18 minutes.
Let cool in the pan for 5 minutes then remove from the pan and cool completely on a wire rack or plate.
Makes 12 mini muffins. Serving size is one mini muffin.