Shake flour, salt and pepper in a plastic bag. Add chicken pieces in batches to coat. Heat butter over medium heat in a skillet and brown each side of the coated chicken. Squeeze fresh lemon juice over the chicken and add capers. Remove to a platter and set aside in a warm place.
To the same pan add butter for the sauce and mix with flour to make a roux. Gradually add chicken broth and allow thickening. Strain sauce, if desired, and serve spooned over chicken.
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