Preheat oven to 350F. Grease and line a standard loaf pan with parchment paper; set aside.
In a medium bowl, whisk together the flour, baking soda, salt, baking powder, and ground coffee.
In a separate bowl, whisk together the mashed bananas, eggs, maple syrup or coconut sugar, granola or nut butter, almond milk, vanilla extract, and apple cider vinegar.
Add the dry ingredients into the wet, and mix until well combined.
Divide the batter in half and pour into two bowls.
Mix the cocoa mixture into one of the bowls, and fold in the chocolate chips in the chocolate mix if desired.
Layer the two batters into the prepared load pan (should be about 2 layers of each). Using a knife, gently swirl the batters.
Bake for 50-55 minutes, until a toothpick inserted into the middle comes out clean.
Let cool completely.
While the loaf is cooling, mix together the ingredients for the coffee glaze in a small bowl.
Once the loaf is cooled, pour the glaze on top and slice.
