Heat the Instant Pot using the Sauté function. Add the bacon and cook, stirring occasionally, until it is crisp and browned, about 5 minutes.
½ pound bacon
Remove the bacon with a slotted spoon (but leave the grease in the pot). Add the onion and cook, stirring occasionally, for an additional 3 minutes or until it is tender.
1 yellow onion
Add the garlic and cook for an additional minute.
2 cloves garlic
Add the water and gently scrape the bottom of the pot with a wooden spoon to remove any browned bits (I don’t recommend a metal utensil for this as it can scratch the pot).
1 cup water
Stir in the barbecue sauce, brown sugar, apple cider vinegar, ground mustard, and smoked paprika. Once combined, add the kidney beans and stir to combine.
1 cup barbecue sauce, ½ cup brown sugar, ¼ cup apple cider vinegar, 2 teaspoons ground mustard, 1 teaspoon smoked paprika, 62 ounces canned kidney beans (dark or light)
Add the bacon back to the pot and stir to combine. Attach the lid and ensure the valve is in the sealing position.
Set the Instant Pot to Manual Pressure Cook for 10 minutes.
When the Instant Pot has finished, allow the pressure to release naturally for 5 minutes and then release any additional pressure manually by switching the valve to the venting position.
Stir and season with salt and pepper to taste. Enjoy immediately.