INGREDIENTS
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1/4 cup good olive oil
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2 1/2 cups chopped Spanish onion (1 large)
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1 tablespoon minced garlic (3 cloves)
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1/2 teaspoon crushed red pepper flakes
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1 1/2 teaspoons dried oregano
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1 cup vodka
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2 28-ounce cans peeled plum tomatoes
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Kosher salt
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Freshly ground black pepper
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1 pound penne rigate or other short pasta shape (Note: Original recipe called for 12 ounces, but this pasta makes plenty of sauce, so go ahead and cook the whole box)
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2 tablespoons chopped fresh oregano, plus extra for serving
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1 cup heavy cream (or less, to taste)
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1/2 cup freshly grated Parmesan cheese, plus extra for serving