How to Make Ultimate Grilled Cheeseburgers with Tangy Sauce

Ingredients

• 1 pound (450g) ground beef (80/20 blend recommended)
• 1 teaspoon (5g) salt
• ½ teaspoon (2g) black pepper
• 4 slices of cheddar cheese (or cheese of your choice)
• 4 hamburger buns (preferably brioche or sesame)
• ½ cup (120ml) mayonnaise
• 2 tablespoons (30ml) ketchup
• 1 tablespoon (15ml) Dijon mustard
• 1 tablespoon (15ml) apple cider vinegar
• 1 teaspoon (5g) sugar
• 1 clove garlic, minced
• Salt and pepper to taste