Barbecue Meatballs Over Mashed Potatoes | Publix Super Markets

Ingredients

• 2 lemons, for juice
• 1 cup prediced yellow onions
• 1 1/4 cups reduced-sodium beef broth (or stock), divided
• 4 tablespoons tomato paste
• 1/2 teaspoon yellow mustard
• 1/4 cup apple cider vinegar
• 1 tablespoon Worcestershire sauce
• 1/4 teaspoon kosher salt
• 1/2 teaspoon pepper
• 1 package frozen beef meatballs (16–20 oz)
• 1 (24-oz) package refrigerated mashed potatoes
• 2 tablespoons cornstarch