OK, So this is expensive but good (and I do not like JD or any bourbon or whisky).
I've used rump here but I reckon onglet would be even better.
Jack Daniels
Rump Steaks
Jack Daniels Soaked Barrel Chips
Marinate the steaks and the already soaked wood chips in JD overnight
Heat your grill for hot, indirect cooking
Dig out the steaks and strain the wood chips - save the JD
Chuck the woodchips onto the charcoal and put the steaks on the opposite side of the grill to take on smoke
When the smoke has finished (should be only a couple of mins) move the steaks over the hot charcoal to sear up
Flip the steaks and pour the JD marinade over the steaks...watch it go up like prices at Christmas
Shout "WooHoo!!! Look at that Sh*t!"
Remove the steaks and rest as usual
Serve