California Burger

Ingredients

• 0.5 cup mayonnaise
• 1 tbsp lemon juice
• 1 clove garlic – finely grated
• 1.25 tsp kosher salt
• 1 tsp black pepper – freshly ground
• 4 leaves butter lettuce – washed and dried
• 1 piece tomato – sliced
• 0.5 piece red onion – thinly sliced
• 1 piece avocado – sliced
• 4 buns hamburger buns – split
• 2 tbsp unsalted butter – softened
• 1.5 pounds ground beef – 80% lean
• 4 slices Monterey Jack cheese
• 1 tbsp vegetable oil

Instructions

1. In a small bowl, combine mayonnaise, lemon juice, and garlic with 0.25 tsp each of the measured kosher salt and black pepper; stir until smooth and refrigerate, keeping the remaining seasoning for the patties.
2. Prepare the toppings: arrange the butter lettuce, tomato, red onion, and avocado on a platter for easy assembly.
3. Preheat a grill to medium-high heat (or set a cast-iron skillet over medium-high). Clean the grill grates and oil them carefully with the vegetable oil using tongs and a folded paper towel.
4. Split the hamburger buns and spread the cut sides with the unsalted butter. Toast on the grill or in the hot skillet, cut side down, until golden, 30–60 seconds; set aside.
5. Divide the ground beef into 4 equal portions and form into 3/4-inch-thick patties with a slight dimple in the center. Season all over with the reserved seasoning. Cook on the hot grill (or in the skillet) until browned, 3–4 minutes per side, to desired doneness (125–130°F for medium-rare, 135–140°F for medium, or 160°F for well-done); in the last minute, top each patty with the Monterey Jack cheese and cover to melt, then rest the patties 2 minutes off the heat.
6. Assemble the burgers: spread the chilled lemon-garlic mayo on the toasted buns, layer with butter lettuce, tomato, a patty with melted cheese, avocado, and red onion, then cap and serve immediately.