Since as of recent, the disconnect timer in Dalaran has been reduced significantly if one is not doing anything of significance / AFK-ing & since the Dalaran cooking dailies have always been notorious for their necessity to wait idly at a certain quest item's spawn to pick it up, sometimes for minutes to end, I suggest reducing the respawn timers for the following items for the following quests:
Half Full Dalaran Wine (Cheese for Glowergold)
Dalaran Limburger (Cheese for Glowergold)
Jug of Wine (Convention at the Legerdemain)
Infused Mushroom (Infused Mushroom Meatloaf)
Wild Mustard (Mustard Dogs!)
The hastening of the respawn timers wouldn't be as necessary hadn't it been for the artificially implemented hastened disconnect while in Dalaran, so I think that my suggestion is fair.