Ingredients
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1 tablespoon Unsalted Butter
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2 cups Yellow Onionsvery thinly sliced
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1/2 teaspoon White Sugar
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to taste Salt
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1/2 pounds Ground chuck80% lean
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3 tablespoons Breadcrumbs
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3 tablespoons Beef broth
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1 teaspoon Kosher Salt
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1/2 teaspoon Black pepper
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2 ounces Brie
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4 Round rolls
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1/3 cup Whole-grain mustard
Directions
Steps
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1
Done
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Step 1Melt butter in a skillet over medium-high heat. Add onions, sugar, and salt, and cook, stirring occasionally, until golden brown, 15 to 20 minutes. Let cool to room temperature. |
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2
Done
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Step 2Preheat grill to high heat. In a bowl, gently mix burger ingredients, minus cheese, and shape into four patties. |
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3
Done
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Step 3Trim rind off Brie, and scoop out enough burger meat to bury a ¼inch-thick piece of cheese. Cover it with at least ⅓ inch of meat. |
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4
Done
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Step 4Grill patties over direct high heat with lid closed, turning once, until desired doneness. During final minute or so of cooking, toast rolls over direct heat. |
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5
Done
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Step 5Top burgers with onions and whole-grain mustard. |
