Ingredients
Equipment
Method
- In a large mixing bowl, combine ground beef, egg, breadcrumbs, diced onion, garlic, Worcestershire sauce, salt, and pepper. Gently mix until just combined.
- Roll mixture into 20-24 golf ball-sized meatballs, using slightly wet hands to prevent sticking.
- In a separate bowl, whisk together onion soup mix, cornstarch, beef broth, heavy cream, ketchup, and soy sauce until smooth.
- Place meatballs in the slow cooker, add sliced mushrooms, and pour the gravy mixture over everything.
- Cover and cook on LOW for 4-6 hours, avoiding lifting the lid frequently.
- During the last 30 minutes, check gravy consistency. If too thin, stir in 1 tablespoon cornstarch mixed with 2 tablespoons cold water.
Notes
Gently mix meatballs to avoid toughness. Avoid frequent lid lifting to maintain cooking consistency. Store leftovers refrigerated for 3-4 days or frozen for up to 3 months, reheating gently in the slow cooker or on the stovetop.