Foryoueats: Sloppy Joe Dip

Ingredients

• 2 pounds ground beef
• 1 small yellow onion, diced (about ½ cup)
• 1 tablespoon brown sugar
• 1 teaspoon garlic powder
• 2 teaspoons kosher salt
• 1 teaspoon ground black pepper
• 1 cup beef broth
• 1 ½ cups ketchup
• 2 teaspoons yellow mustard
• 3 tablespoons cornstarch
• 3 tablespoons water
• 1 ½ cups shredded cheddar cheese, divided
• toasted baguettes, or bagel chips for serving