Hit the sauté button on your Instant Pot.
Once it reads "HOT", add in bacon in an even layer.
Cook on both sides until crispy, or cooked to your liking.
Remove (leave grease in Instant Pot), crumble, and set aside for later.
To the Instant Pot, add in ground beef, onion, garlic, salt, and pepper.
Cook, breaking up the beef as you go, until the meat is no longer pink. This does take some time, as there's a lot of beef!
Turn IP off. Then, drain grease, if any.
Deglaze the Instant Pot, scrapping up any brown bits from the bottom, with the beer.
Pour in beef broth, tomato sauce, worcestershire sauce, tomato paste, green bell pepper, chili powder, brown sugar, ground cumin, smoked paprika, and red pepper flakes.
Stir to combine.
Cover and lock the lid (make sure the steam releasing handle is pointing to sealing).
Cook on HIGH pressure for 20 minutes. Remember: the count down doesn't start until after the IP has come to pressure, which does take some time.
Once the IP beeps to signify it's done, flip the valve to "venting" for a quick release.
Stir in beans and crumbled bacon.
Taste and re-season, if necessary.
Serve with optional toppings!
Take 5 seconds to . We greatly appreciate it!