Pour 1 cup cold water into the bottom of a 6 quart Instant Pot, grease a non-stick round 7 inch cake pan (7.7 x 7.7 x 2.75 inches)* with cooking spray, then coat the pan in the cinnamon sugar mixture. Set aside.
In a large bowl, whisk together butter, brown sugar, egg, and vanilla until smooth, then whisk in mashed bananas.
Fold in flour, cinnamon, baking soda, baking powder, and salt until *just* combined.
Gently fold in the chips and nuts, then pour the batter into the prepared cake pan.
Cover with tin foil that’s been sprayed with cooking spray (this prevents the bread from sticking to the foil).
Place the pan onto the instant pot trivet and lower it into the prepared Instant Pot.
Cover and lock the lid - make sure the valve is pointing to “SEALING.”
Cook on HIGH pressure for 90 minutes or until the banana bread is cooked through.
Once the cook time ends, allow the Instant Pot to naturally release for 15 minutes, then release any remaining pressure by flipping the valve to “VENTING".
Use a dish towel to carefully lift the trivet up and out of the Instant Pot.
Carefully remove the foil (you don’t want the condensation dripping onto the bread), then let cool in the pan for 10 minutes before turning out upside down onto a cutting board.
Cut into wedges and enjoy!
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