Trim excess fat from chicken. Place each piece between 2 sheets of waxed paper; flatten to 1 cm thickness, using a meat mallet or rolling pin.
Place chicken in 13x9x2 baking dish. Combine next 5 ingredients in a small bowl; pour over chicken. Cover and refrigerate 2 hours.
Remove chicken from marinade, discarding marinade. Coat a grill with cooking spray. Grill chicken over med coals 8 minutes, turning once.
Arrange chicken on a serving platter; garnish with lime wedges. Serve either warm or chilled with 1.5 tablespoon Dill Sauce per serving.
8 servings
Dill Sauce:Combine all ingredients in blender; process till smooth. Cover and chill thoroughly.