Grease the loaf pans and line with parchment paper.
In a mixing bowl, combine mashed bananas, buttermilk, almond butter, and melted butter together, followed by the sugars.
Add in the eggs and vanilla and mix until thoroughly combined.
Gradually mix in the dry ingredients into the batter until they are fully incorporated.
Fold in the chopped nuts until evenly distributed.
Pour the batter into the prepared pans and bake at 310°F for approx. 40-45 minutes until a test skewer inserted into the center on the almond butter banana bread comes out clean.