INGREDIENTS
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2/3 cup walnuts
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2 pints cherry tomatoes, halved
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2 tablespoons plus 1/3 cup olive oil, plus more for drizzling
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Kosher salt
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6 oil-packed anchovies, coarsely chopped
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2 garlic cloves, coarsely chopped
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1 teaspoon finely grated lemon zest
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1/4 teaspoon crushed red pepper flakes
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1/2 ounces Parmesan, finely grated (about 1/2 cup), plus more for serving
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1 teaspoon freshly ground black pepper
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12 ounces spaghetti
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1/2 cup (packed) basil leaves