I got a 20 lbs prime brisket from Sam’s a few days ago. I’ve been wanting to try this beef tallow thing with a brisket but didn’t have any. Enter duck fat! Coated it with duck fat and injected the flat with some duck fat. Seasoned liberally with a local pit masters Dirt rub. Smoked with a mix of oak and cherry in my Lang 84D. Wrapped in peach paper with a light coating of the duck fat and some seasoning and finished to probe tender at 205F. Rested in the cooler for about and hour and a half. My buddies working nights keeping our town safe so he dropped off some meat he had ready to smoke this morning prior to hitting the hay. Did his chuck and man it are out good. Wrapped in a foil pan with some beef broth and onion at 165F. Pulled at 203F and into cooler for an hour. Bone pulled clean and the meat was fall apart tender. He also had a small amount of ham with rub. I put some bacon and brown sugar sub on the rack over it. Ended up with tasty ham and candied bacon. Also did a big pan of my keto cowboy beans.