OK so I've had 4 yellow onions chopped and smoking at 225 with pittmaster in the MES cold smoker since 7:30 am this morning. I'm planning on making Smoked Onion Dip for friends coming over tonight. Anyone smoked onions has any idea on how long to smoke them? Most recipes don't give a time frame, and I'm at work right now. So I'll be telling the person at my house when to turn the smoker off.