"The ultimate low and slow comfort staple with a little je ne sais quoi, this recipe is one of my favorite make-aheads that, even after a few days, I’d happily serve to company (yes, even the mashed potatoes!). The sweetness of caramelized onions paired with rich and hearty slow-cooked beef is made all the more indulgent when paired with ultra…..."
INGREDIENTS
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3 lb chuck roast kosher salt
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Freshly ground black pepper
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1 tablespoon olive oil
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2 tablespoons butter
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8 yellow onions (thinly sliced 3 garlic cloves, chopped)
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1½ teaspoons packed brown sugar
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¼ cup brandy
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1 tablespoon all-purpose flour
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2½–3 cups low-sodium beef broth
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4 sprigs thyme
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2 bay leaves
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2½ lb yellow potatoes (peeled and quartered)
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4 garlic cloves
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4 sprigs thyme kosher salt
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6 tablespoons butter
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½ cup heavy cream
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¼ cup buttermilk
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7 oz gruyère cheese (grated 3½ oz mozzarella cheese, grated)