1 tablespoon stemmed thyme or 2 teaspoons
dried thyme
1 teaspoon salt
1⁄2 teaspoon freshly ground black pepper
1⁄4 teaspoon grated nutmeg
2 cups heavy cream
1 cup vegetable broth
How to make
Brussels Sprouts and Potato Gratin
Position the rack in the center of the oven and
preheat the oven to 350°F. Lightly butter a 13x9-inch baking dish; set aside.
Melt 3 tablespoons butter in a large skillet over
medium heat. Add the onion, reduce the heat to
low, and cook, stirring often, until golden, about
10 minutes.
Add the Brussels sprouts and raise the heat
to medium. Cook, stirring often, until softened,
about 6 minutes. Set aside off the heat.
Peel the potatoes, then thinly slice them the
long way into strips no more than 1⁄4 inch thick.
It’s best to use a mandoline, but you can use a
knife if it’s quite sharp.
Layer half the potatoes across the bottom of the
buttered baking dish. Spread the Brussels sprouts
mixture evenly over the potatoes. Sprinkle evenly
with the thyme, 1⁄2 teaspoon salt, the pepper, and
nutmeg; then top with the remaining potato slices.
Sprinkle the remaining 1⁄2 teaspoon salt over the
dish, then pour the cream and broth evenly over the
dish. Dot with the remaining 3 tablespoons butter.
Bake until the potatoes are golden and tender
and most of the liquid has been absorbed, about
11⁄2 hours. During the last 30 minutes, use a large
spoon to catch some of the juices and cream bubbling
up between the potatoes; baste the potatoes
two or three times to moisten them on top.