The two ways we usually think of are low & slow (maybe 5 hours, give or take) or hot & fast (30 minutes to an hour).
Last night I did some baby backs (2 racks, c.650g each) in a very large roasting tray with a lid for about two and a half hours at 150c.
Barbecue sauce on for the last 30 minutes, lid off for the last 15.
Very nice. I'll be interested to see how this does on the Weber.
Steve W


