Too hot to turn the oven on? You can still have delicious creamy potatoes with this savory recipe. Peeling is optional, and any kind of parmesan you have is fine. Note: Thanks to the reviewers who made this the second-place winner! I've noted the things you said, and made a few adjustments. Note: This is a stovetop recipe. I do not recommend making it in the oven. Although it can be done successfully, it takes about twice as long to cook using raw potatoes. Using cooked or partially cooked potatoes does not give the sauce a chance to thicken properly. The dish also has a serious tendency to scorch in the oven.