In this recipe, you’ll cook tapioca pearls right in the stew which will thicken the gravy. However, if you don’t have those on hand, there are other options as well for thickening the stew. You could toss the beef in 1/3 cup flour, shake off excess, and add to the Instant Pot as normal. If you do this and you have a newer Instant Pot, you will likely need additional liquid (I’ll often do a second can of tomato juice) to avoid the burn warning on the Instant Pot. Or lastly, you could make a slurry of 2 tablespoons cornstarch and 1/4 cup water and add that slurry to everything in the Instant Pot after it’s cooked to thicken things up.