INGREDIENTS
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Ingredients
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5 pounds flat-cut beef brisket (see Note), trimmed
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2 tablespoons extra-virgin olive oil, divided
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4 large onions, thinly sliced
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6 cloves garlic, minced
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1 teaspoon dried thyme
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1 teaspoon coarsely ground pepper
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1 6-ounce can tomato paste
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2 cups reduced-sodium beef broth
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1 teaspoon salt
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2 tablespoons butter, softened
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2 tablespoons all-purpose flour
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1 tablespoon Worcestershire sauce