The other day I fried some chicken. When I removed the pieces from the oil, I added some finely diced onions. Then stored these semi fried onions and oil.
Today rubbed that very fragrant oil+onion+masala mix on Lamb Chops and let it sit for about half an hour.
Then grilled them on a stove for a couple of mins. Then laid them into an oven pan for 30 mins at 190 degrees (Celsius).
Juicy mutton that leaves you smacking your lips.
You can replace the rub with just plain oil, onion powder and masala powders.