I have a question about the recipe "Gratin Dauphinois à Lyon (REALLY Rich Potato Gratin!)" from ChefJune. Can this be prepared 1-2 days ahead and reheated in the oven?
Yes, it can be reheated, I've done this many times and have enjoyed reheated leftovers countless times.
If you get potato gratin in a restaurant, most likely is has been reheated. They take about an hour to bake so restaurants don't make these to order.
Potato gratin also freezes fairly well (cooked). I have made individual gratins and frozen them. I've also made large gratins in rectangular or square dishes, cook, chill, then cut into individual portions (wrapped individually) and frozen.
Thank you! This is very helpful. Looking forward to making this recipe.