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American · United States

Hamburger with Lettuce, Tomato, and Caramelized Onions

A flavorful hamburger with a juicy beef patty, fresh lettuce, ripe tomato, and sweet caramelized onions, served on a sesame seed bun with ketchup.

30 minutes4 servings
Hamburger with Lettuce, Tomato, and Caramelized Onions
Photo: Sinchen.Lin · CC BY 2.0

Ingredients

Method

  1. Heat olive oil in a skillet over medium heat.
  2. Add sliced onions and cook until softened, about 5 minutes.
  3. Stir in brown sugar and balsamic vinegar, then cook until onions are caramelized, about 10 minutes.
  4. Form ground beef into 4 patties.
  5. Grill patties over medium-high heat until cooked to desired doneness, 4-5 minutes per side.
  6. Toast sesame seed buns and assemble with lettuce, patty, tomato, caramelized onions, and ketchup.
  7. Check that the ground meat reaches 71°C (160°F) throughout before serving.

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