Bacon Double Cheddar Cheeseburger with Caramelized Onions

Ingredients (13)

• 3 slices thick cut bacon
• 2 pounds 80% ground chuck beef
• 4 ounces about ½ cup diced Cache Valley Dairy medium cheddar cheese
• 2 teaspoons freshly ground black pepper
• 1 1/2 teaspoons kosher salt
• 1 yellow onion
• 3 tablespoons butter
• 6 brioche or white buns
• 6 Cache Valley Dairy American cheese slices
• Sliced tomato
• ¼ cup mayonnaise
• ¼ cup ketchup
• 1 tablespoon BBQ sauce