We really recommend that you mix up your dough, scoop out your patties and get right to rolling. I know there are a lot of you out there that when it comes to making lefse, it’s a marathon! You might be cooking up to 20lbs of potatoes and want to get as much done in advance as you can. Patties made a day before tend to “breakdown” overnight. They can get discolored and watery, turning into a rolling nightmare. Now a few hour in advance? No problem, just keep the patties on the chilly side.