Preheat your oven to 375 degrees Fahrenheit and line a loaf pan with parchment paper and lightly grease it using vegan butter or coconut oil.
In a bowl or measuring cup, add the milk and apple cider vinegar together, whisking until combined. Let it sit for 5-10 minutes until the mixture slightly thickens.
In a large bowl, combine the mashed bananas, melted butter, maple syrup, bourbon, vanilla, and Almond milk-AVC mixture, whisking them together until well combined.
Next, add in the flour, cocoa powder, baking powder, baking soda, brown sugar, cinnamon, and sea salt into the wet ingredients, stirring until just combined. NOTE: DO NOT OVER-MIX! Fold in chocolate chips.
Pour batter in the prepared loaf pan and evenly spread it out.
Gently place the sliced banana slices on top of batter (lightly pressing them in so they stay in place) and sprinkle the top of batter with chocolate chips.
Bake for 55-60 minutes, or until a toothpick or knife that is inserted in the middle comes out clean.
Once done, remove bread from oven and let it cool for 10-15 minutes before gently removing it from loaf pan to cool completely.
Once cooled, slice and enjoy!