Steps

• Begin by heating olive oil in a medium frying pan over medium-high heat. Once the oil is shimmering, add the cubed beef stew meat. Sear the sides until they're browned, which should take about 5–7 minutes.
• After searing, carefully transfer the beef cubes to your slow cooker.
• In the same pan, add the chopped onions and garlic. Sauté for about 3 to 4 minutes until onions are soft and translucent.
• Pour the sautéed onion and garlic over the beef in the slow cooker. Add the beef broth, red wine, Worcestershire sauce, salt, and pepper. Stir to combine.
• Set your slow cooker on low heat and let it cook for 6 to 8 hours or on high for 3 to 4 hours.
• About 30 minutes before serving, mix 2 tablespoons of cornstarch with 2 tablespoons of water to make a slurry. Add to the slow cooker to thicken the sauce.