Preheat oven to 350°F (175°C). Line loaf pan with parchment or grease like it owes you money.
In a large bowl, mash bananas. Add peanut butter, maple syrup, oil, vanilla, and milk. Stir until smooth-ish.
In a separate bowl, mix flour, baking soda, cinnamon, and salt.
Add dry ingredients to wet mixture. Fold gently—treat it like your favorite cashmere.
Pour batter into pan. Smooth the top. Optional: swirl in more peanut butter like the drama queen you are.
Bake for 50–55 minutes until golden and a toothpick comes out with dignity.
Let cool for 10 minutes in the pan. Transfer to rack and pretend you’ll share it.