24 Make-Ahead Thanksgiving Recipes
Spinach and Gruyère Gratin
Get the recipe.
Make-ahead tip: The gratin can be prepared (but not baked) and refrigerated, covered, up to 1 day in advance. Bring to room temperature, then bake as directed, adding 5 to 10 minutes to the cooking time.
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So maybe you can’t change your health overnight. But you can get a head start.