1 Tablespoon (For brushing cubes, if desired) (Optional)
Combine first 6 marinade ingredients in medium bowl.
Add lamb and sprinkle with salt and pepper.
Mix to coat lamb thoroughly.
Marinate in refrigerator overnight.
Remove meat from refrigerator 1/2 hour before cooking.
Preheat broiler or barbecue.
Alternate meat and peppers on skewers.
Broil until meat is browned, brushing the cubes with butter if desired.