Ingredients

• 1 cup mayonnaise
• 1/2 cup buttermilk
• 2 tablespoons minced fresh chives
• 2 tablespoons minced fresh flat-leaf parsley
• 1/4 teaspoon salt
• 1/4 teaspoon freshly ground black pepper
• 1/4 teaspoon garlic powder
• 1 pound lean ground beef (80/20)
• 1 tablespoon Worcestershire sauce
• 1 large egg, lightly beaten
• 1/2 teaspoon salt
• 1/4 teaspoon freshly ground black pepper
• 4 potato buns, buttered and toasted
• 8 pieces cooked bacon, cut in half
• 1 ripe tomato, sliced
• Bibb lettuce leaves, for topping

Instructions

1. For the dressing: Combine the mayonnaise, buttermilk, chives, parsley, salt, pepper and garlic powder in a medium bowl and mix well. Refrigerate until ready to serve.
2. For the burgers: Preheat an outdoor grill to medium-high heat.
3. In a bowl, combine the beef, Worcestershire sauce, egg, salt and pepper. Shape into 4 patties.
4. Grill the patties for about 5 minutes per side for medium doneness.
5. Place each patty on a bun and top with bacon, tomato, lettuce and a generous dollop of dressing. Close the burgers with the top bun half and serve immediately.