You need high cooking skill and the ShinyTyme Cooktop Oven to cook a Christmas dinner. As far as I know, that's all you need!
I guess that a new stove that comes with the holiday pack. What comes with the Christmas dinner? Does the table fill up with food or just like a turkey? Ruth
Even though I don't have the Holiday Pack, the ShinyTyme oven thing is in buy mode under Appliances, it's the white one with Hunger: 10 (I think), and the cornucopia is the basket with the fruits in it under Decorations, Other. ...I think.
No new stove, only holiday-related items, like decorations, wallpaper and carpets etc. The only ovens you get are the ones you already had. The Christmas Dinner is just like any other meal in terms of serving (it has to be served - no single portions!present: . Wonder if the Sims like the sprouts any more than we do?