INGREDIENTS
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2 tablespoons unsalted butter
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2 scallions, thinly sliced, white and green parts separated
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Large pinch saffron
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4 cups low-sodium chicken broth, warmed
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2 russet potatoes, cut into ? 1/2-inch pieces
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Kosher salt and black pepper
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1 1.5 pounds small peeled shrimp
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2 cups frozen corn, thawed
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1 cup half-and-half