Peel, and cut the onions in quarters then separate them. Dice the beef and then onto 4 kebab sticks, interwoven with the onions. Mix the spices with the oil on a plate and rub the kebabs all over.
Thread the beef onto the kebab sticks and brush with oil. Heat a grill pan until smoking hot and add the kebabs, garlic and rosemary. Turn the kebabs to sear on all sides. Boil the whiskey ...