A question about a recipe: Pommes Dauphinoise (Potatoes au Gratin)

Merrill is a co-founder of Food52.

added about 2 years ago

You really shouldn't assemble this too far ahead of time without cooking it, as the potatoes will oxidize and discolor. If you want, you can cook it almost all the way through, then cool, cover and refrigerate. Return to room temp before finishing/reheating in the oven.

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