Name: The BA Patty Melt
Yield: Makes 4 Servings
Ingredients: 2 tablespoons vegetable oil; 2 large onions, thinly sliced; ¼ small onion, finely chopped; 1 pound ground beef chuck (20% fat); 1 tablespoon ketchup; ½ teaspoon garlic powder; 1 teaspoon kosher salt; ¼ teaspoon freshly ground black pepper; 1 tablespoon vegetable oil; 8 slices seeded rye bread (preferably Levy’s); 4 ounces aged sharp cheddar, thinly sliced; 4 ounces Swiss cheese (such as Emmenthal), thinly sliced; 8 teaspoons mayonnaise

Christopher Testani

You may ask yourself, Does this sandwich really need mayonnaise? The answer is yes. A swipe of mayo, not butter, on the bread encourages that gorgeous exterior. This is part of BA's Best, a collection of our essential recipes.

Recipe notes