So, what kind of mustard should you use? Well, that’s completely up to you. It really depends on which type you like best and whether you want to add any texture to your mashed potatoes or not. Whole grain and stone-ground mustard are both coarse and will add a bit of a grainy texture, whereas the standard bright yellow American and Dijon mustards will not.
Dijon and whole grain are both commonly found in recipes for mustard mashed potatoes. Some recipes even call for both. With so many different types of mustard to choose from, feel free to experiment with whichever you like best, mixing and matching as you see fit. It’s hard to imagine going wrong with any of them. But since mustard has such a strong flavor, just be careful not to use too much all at once if you’re winging it without a recipe. After all, you can always add more, but you can’t remove any once it’s been added.
