How can I use duck fat?

I always save strained duck fat from doing duck breasts. Use it in mashed potato (the Four Seasons Hotel in my city cannot take it off their menu due to so many people loving it). Also, it is, of course, perfect for the extra fat needed when doing duck leg confit.

Using Duck fat in any chocolate dish is very good it add great robust flavor to contrast the sweetness or to add to a bitter chocolate a velvety texture

I fry in it, use it to roast stuff, and you can make a pretty amazing gumbo ... I even sneak it into cookies:

http://www.food52.com/recipes/10784_orange_daffy_snaps

Roasted potatoes cooked in duck fat will take you to a whole new level of potato pleasure! They were made for each other and you will have the crispiest, tastiest roast potatoes you have ever made.