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American · United States

Umami Burger with Caramelized Onions

A rich and savory burger with caramelized onions, roasted tomato, and a homemade umami ketchup, served on a brioche bun.

20 minutes4 servings
Umami Burger with Caramelized Onions
Photo: Jun Seita · CC BY 2.0

Ingredients

Method

  1. Caramelize onions in a pan with a bit of olive oil until golden brown.
  2. Toast brioche buns.
  3. Spread umami ketchup on the bottom bun, add spinach, then caramelized onions.
  4. Top with roasted tomato slices and lettuce.
  5. Place the top bun and serve.

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