Carole, you can get a LOT of hard to find items, including the truffles, at
King Arthur Flour Reasonable, too. They have different varieties and they ***** out QUICK! A credit card order placed today will be in your mailbox within 5 days with no extra "express" shipping costs. They have a LOT of neat stuff for your cooking and baking needs. You can also get any spice in the world (literally) from
Penzey's . Don't think I've seen truffles with them, however, but they also have a
few gourmet items. They do gift baskets and some other things. Check them out, too. I have been ordering from both these places for eons and have
never had a problem. Both are small companies; King Arthur is employee "owned" and Penzey's is a family biz. You can even phone both of these with any questions, even about cooking!
With regard to your potatoes, I posted a recipe here a few days ago, "not your everyday roasted spud" or something like that. Those are great...what you are looking for, crispy on the outside and lusciously creamy inside. Don't be fooled by the addition of the chicken stock...when I first made them, thought this, but no...crispy, golden outer and hot creamy inner. You can add herbs and spices of your choosing (like rosemary...) but I don't think they need any more than what they are. You won't be disappointed with them! Hope those 2 sources have what you need!
Good luck with your dinner!