Recipe: <!-- -->Old-Fashioned Sloppy Joes<!-- --> | Whole Foods Market

Ingredients

• 1 1/2 pounds 85% lean ground beef
• 1 yellow onion, chopped
• 1/8 teaspoon fine sea salt
• 1/4 teaspoon ground black pepper
• 1 cup ketchup
• 2 tablespoons cider vinegar
• 2 tablespoons Worcestershire sauce
• 2 tablespoons brown sugar
• 2 tablespoons prepared yellow mustard
• 6 hamburger buns, toasted