This is the recipe I use, I replaced all the fats with duck fat during my last prep of it, but I think it would have been improved slightly by using an herbed compound butter (or margarine, in my case, I chose duck fat and duck bacon for making this with the beef bourguingon for kosher reasons) for the butter they throw in before the potatoes go in the oven.
It didn’t occur to me to use duck fat for fondant potatoes! I have some fat in the freezer oh hell yeah
https://www.seriouseats.com/fondant-potatoes-recipe-5217320
This is the recipe I use, I replaced all the fats with duck fat during my last prep of it, but I think it would have been improved slightly by using an herbed compound butter (or margarine, in my case, I chose duck fat and duck bacon for making this with the beef bourguingon for kosher reasons) for the butter they throw in before the potatoes go in the oven.