INGREDIENTS
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Kosher salt
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1 cup instant polenta
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4 tablespoons olive oil
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2 Spanish onions, thinly sliced
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1 large shallot, thinly sliced
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2 to 3 thyme sprigs
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1 tablespoon minced garlic
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Kosher salt and freshly ground black pepper
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4 cups wild mushroom mix
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12 ounces beef sirloin, thinly sliced
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1/4 cup brandy
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1 cup beef stock
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2 handfuls baby spinach, stems trimmed
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Sour cream, for garnish
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Chopped fresh parsley, for garnish
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Lemon zest, for garnish