Ingredients Jump to Instructions ↓

  1. 3 tablespoons extra-virgin olive oil

  2. 2 tablespoons unsalted butter

  3. 1 large sweet onion, sliced

  4. 2 pounds shiitake mushroom caps, sliced Sea salt and fresh ground black pepper

  5. 3 pounds ground beef

Instructions Jump to Ingredients ↑

  1. Preheat grill to medium heat. Heat a skillet over medium-high heat. Add the olive oil and butter. When melted, add the onion and cook until translucent, about 5 minutes. Add the mushrooms, sea salt , and pepper, to taste. Cook until the mushrooms are tender, about 5 minutes. Remove the pan from the heat and allow to cool. In a large bowl, combine the cooled onion mixture and ground beef with sea salt and pepper to taste. To adjust seasonings, form a small test patty , cook, and taste. Adjust if necessary. Form the meat mixture into 6 patties. Place the patties on the heated grill and cook, turning once, until desired doneness, about 2 to 3 minutes per side for medium-rare.


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