Classic Diner Hamburger | Louisiana Kitchen & Culture

Ingredients

• 4 thick red (Spanish) onion slices
• 4 thick beefsteak tomato slices
• 1½ tablespoons fresh lemon juice
• 4 tablespoons olive oil
• 1½ lb (660 g) ground (minced) sirloin or chuck
• ½ teaspoon salt
• ¼ teaspoon freshly ground pepper
• 3 tablespoons bottled chili sauce, or to taste
• ¼ cup (2 fl oz/60 ml) ice water
• 4 large onion rolls or hamburger buns, split
• ¾ cup (2½ oz/75 g) shredded iceberg lettuce