Preheat oven to 350 degrees Fahrenheit. Spray bread pan (or 3 mini loaf pans) with cooking spray. Set aside.
Make homemade buttermilk by measuring milk into a small bowl. Add in apple cider vinegar. Stir slightly and set aside.
Add your overripe bananas into your stand mixer (or large mixing bowl). Next add in sugar, honey, coconut oil, and room temperature eggs. Mix until combined and bananas are mashed.
Then add in flour, baking powder, baking soda, and homemade buttermilk to the banana mixture. Mix until just combined, scraping sides of mixing bowl with a spatula if necessary.
Pour banana bread batter into prepared loaf pan or mini loaf pans.
Bake banana bread for 45-55 minutes for a 5x9 inch bread pan or 25-35 minutes for 3 mini loaves. Banana bread should be golden brown on top and if you insert a toothpick into the center of the loaf it should come out clean when done.
Cool & enjoy!