Set your instant pot on SAUTE mode and let it heat up.
Prepare the meat: by cutting the chuck roast into 2 inch cubes. Season it on all sides with salt and pepper.
2 pounds boneless chuck roast, 1 tablespoon kosher salt, 2 teaspoons black pepper
Brown the meat: Add the avocado oil to your warmed up instant pot, then add in the beef in an even layer. You may need to do this in 2 batches so you don't overcrowd the instant pot. Brown the meat for 5-8 minutes on each side.
1 tablespoon avocado oil
Make the Sauce: Add all the browned meat into the instant pot, then add in the marinara sauce, and red wine.
2 20-ounce jars marinara sauce, 1/2 cup red wine
Cook the Sauce: Close with the lid, and make sure the vent is at SEALING. Hit CANCEL, then cook on HIGH PRESSURE for 35 minutes. Will take about 10-15 minutes to reach pressure, then it will start counting down from 35. After the 35 minutes is up, do a QUICK RELEASE, where you move the valve to VENTING to release all the steam. Once all the steam is gone and the float valve has dropped, you can safely open the instant pot.
Shred the beef: remove the beef from the instant pot using a slotted spoon and transfer to a plate. Shred it with 2 forks. Before adding the shredded beef back in, use a spoon to skim any fat from the top of the sauce. I like to remove about 70% of the fat. Remove as much as you desire. Then, add the shredded beef back in to the instant pot and stir to combine with the sauce.
Serve warm over cooked cauliflower gnocchi (or pasta, hearts of palm noodles, zucchini noodles, whatever you like the most!) I love it topped with finely chopped parsley and parmesan cheese as a garnish.
See the Recipe Notes below for more tips, FAQ's and ingredient substitutions.