Press the Sauté button on the Instant Pot. Add in 1 tablespoon of olive oil. Once heated, add in the ground beef and salt. Brown the meat until cooked through. Drain excess liquid from the pot if needed.
1 tablespoon olive oil, 2 pounds ground beef, 1 teaspoon kosher salt
Add in the onion, bell pepper, and garlic, and cook for a few minutes until softened.
½ onion, 1 green bell pepper, 2 cloves garlic
Add in the beef broth, ketchup, apple cider vinegar, tomato paste, brown sugar, Worcestershire sauce, and chili powder. Stir.
¾ cup low-sodium beef broth, ¾ cup ketchup, 2 tablespoons apple cider vinegar, 2 tablespoons tomato paste, 2 tablespoons brown sugar, 1 tablespoon Worcestershire sauce, 1 teaspoon chili powder
Place the lid on the pot. Press the Cancel button. Press the Pressure Cook or Manual button and cook for 5 minutes.
Allow the pressure to release naturally for 10 minutes. Then release the remaining pressure by flipping the pressure release valve.
Give the meat a stir and let it sit for 5-10 minutes to thicken up.
Serve on hamburger buns, pickles, and red onion.
6 hamburger buns, Pickle slices, Sliced red onion