Microwave instructions: Omit butter. For glaze, combine chili sauce, orange marmalade and mustard in 1-cup glass measure. Microwave at HIGH for 3 minutes, stirring once. Lightly flatten chicken to uniform thickness. Place chicken on microwave-safe roasting rack; cover with wax paper. Microwave at HIGH for 4 minutes, turning and rearranging once. Brush with glaze; microwave, uncovered, 2 minutes. Turn; brush again with glaze. Microwave for 2 minutes or until cooked.