Savory Crock Pot French Onion Beef Meatballs Recipe for Dinner - The Pass and Provisions

Ingredients

• 1 pound (454 grams) ground beef
• 1 large egg
• 1 ½ cups shredded Gruyere or Swiss cheese
• ¼ cup grated Parmesan cheese
• ½ cup breadcrumbs (plain or seasoned)
• 2 tablespoons milk
• 1 teaspoon garlic powder
• 1 teaspoon onion powder
• ½ teaspoon dried thyme
• ½ teaspoon salt
• ¼ teaspoon black pepper
• 2 tablespoons unsalted butter
• 2 large yellow onions, thinly sliced
• 2 teaspoons sugar
• 1 teaspoon salt
• 3 cups beef broth
• 2 teaspoons Worcestershire sauce
• 1 tablespoon cornstarch
• 1 tablespoon water