INGREDIENTS
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4 boneless, skinless chicken breasts, trimmed of fat (1-1 1/4 pounds total)
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1/4 teaspoon salt, plus more to taste
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1/4 teaspoon freshly ground pepper, plus more to taste
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3 teaspoons extra-virgin olive oil, or canola oil, divided
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1/4 cup finely chopped shallots
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1/2 cup reduced-sodium chicken broth
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1/2 cup dry white wine
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1 tablespoon Dijon mustard
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1 tablespoon reduced-fat sour cream
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1 tablespoon chopped fresh tarragon