Ingredients

4 boneless skinless chicken breast halves (4 ounces each)1/4 teaspoon salt1/4 teaspoon pepper2 teaspoons canola oil1 shallot, finely chopped1 tablespoon minced fresh rosemary or 1 teaspoon dried rosemary, crushed1/2 cup reduced-sodium chicken broth2 teaspoons grated lemon zest4-1/2 teaspoons lemon juice1/4 cup cold butter

Preparation

Preheat oven to 400°. Sprinkle chicken with salt and pepper. In a large cast-iron or other heavy skillet, heat oil over medium heat; brown chicken on both sides. Transfer to a 15x10x1-in. baking pan; reserve drippings. Bake chicken, uncovered, until a thermometer reads 165°, 8-10 minutes.

Meanwhile, in same skillet, cook and stir shallot and rosemary in drippings until tender. Stir in broth. Bring to a boil; cook until liquid is reduced by half. Reduce heat to low; stir in lemon zest and juice. Whisk in butter, 1 tablespoon at a time, until creamy. Serve with chicken.