Potato Patties are one of the best ways to use leftover mashed potatoes ... If you see that they are not holding together, add more flour to the mixture. This is not something I can measure ...

You can do jarred gravy, from-scratch gravy ... unable to make a “regular serving” for the family, and leftover mashed ...

But there is a way to put them to use - and here is how to do it. By mixing leftover mashed potatoes with flour, you can create a delicious batter to add to a pan and enjoy with butter.