11 Gratin Recipes That Are *So* Upper-Crust

Potatoes don't own the gratin game. This collection of recipes is made with some surprising—but just as delicious!—ingredients.
Photograph by Isa Zapata, Food Styling by Thu Buser, Prop Styling by Christina Allen1/11Classic Potato Gratin
When simmering the cream, make sure it’s over gentle heat (if it over-reduces, it will break).
2/11Collard Green Gratin
In place of collards, you can make this with the same amount of curly or Tuscan kale. P.S.: There is prosciutto.
Christopher Testani3/11Root Vegetable Gratin
The key to gratins is having all the ingredients—whether they’re basic potatoes or the mixed root vegetables below—sliced the same thickness so they cook at the same rate. Make friends with a mandoline: It quickly yields precise, even slices.
4/11Squash and Tomato Gratin
A crunchy, cheesy topping gives this tomato and squash gratin big flavor and texture.
Michael Graydon + Nikole Herriott5/11Broccolini-Cheddar Gratin with Rye Breadcrumbs
You will fight your own family for the bits of cheesy goodness stuck to the bottom of the pan.
Danny Kim6/11Mixed Citrus "Gratin"
Surprised to see this here? Suprêming citrus may be a labor of love, but there really is nothing more refreshing than taking a bite into one of these segments.
Alex Lau7/11Fennel Gratin with Walnut-Thyme Breadcrumbs
A doubly crunchy topping marks a breakthrough moment for creamy roasted fennel.

Christopher Testani9/11Endive and Fennel Gratin
The liquid will not submerge the endive at first, and that’s okay. Take the gratin out of the oven after 10 minutes and press down with a spatula to submerge the endive in cream.
10/11Gnocchi Gratin with Gorgonzola Dolce
Nutmeg and rosemary provide a cozy base of flavor for this stunner of a casserole.
11/11Potato and Celery Root Gratin with Leeks
The key to this gratin's great flavor? Infusing the cream with garlic.