I use three packets of McCormicks Pepper corn amd spices. I find this at Walmart. like I said it comes in packets and the last time I bought it, it came in pepper corn and garlic. Two big bottle of worcestershire sauce( I get that at Sam’s). 4-5 lbs of top Round. About two heapin spone fulls of brown suger. My Nuwave it comes with two racks. The nuwave wave oven cookbook said placing it on 150 degrees and set timer for 3hrs. Slice meat thin side ways. Place meat in a bowl then add peppercorn and garlic spice, sugar and Worcestershire to cover meat, marinate in frgi overnight and drain meat in a colander then extra juice save it and make one more batch. Account Nuwave only does a little of 2lbs. set nuwave on 150 then time it 3hrs. That’s it and if ya need call 252-341-6779