SWEET POTATO-CAULIFLOWER GRATIN WITH CRISPY SAGE LEAVES

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Sweet Potato-Cauliflower Gratin with Crispy Sage Leaves image

This potato gratin dish uses a lightened-up bechamel sauce, so you get the richness without the butter. And the fancy sage garnish couldn't be easier: All you need is 10 seconds to flash-fry the fresh leaves in some vegetable oil.

Provided by Martha Stewart

Categories     Food & Cooking     Main Dish Recipes     Casserole Recipes

Number Of Ingredients 9

2 tablespoons extra-virgin olive oil
3 tablespoons all-purpose flour
1 cup whole milk
1/4 cup plus 1 tablespoon freshly grated Parmesan
20 fresh sage leaves, plus 1 tablespoon chopped
Coarse salt and freshly ground pepper
2 pounds sweet potatoes, peeled and sliced 1/4 inch thick
1 head cauliflower, quartered and sliced 1/4-inch thick
Vegetable oil, for crisping sage

Steps:

  • Heat oven to 350 degrees. Heat olive oil in a small pot over medium heat. Add flour and cook, stirring, 1 minute. Slowly whisk in milk and 1 cup water. Cook, whisking, until thick enough to coat the back of a spoon, about 12 minutes. Remove from heat and stir in 1/4 cup Parmesan and the chopped sage. Season with salt and pepper.
  • Pour a third of the sauce in the bottom of a 9-by-13-inch casserole dish. Arrange a third of the sweet potato and cauliflower slices along the bottom. Season with salt and pepper. Repeat twice with remaining sauce and vegetables. Cover dish with parchment-lined foil and bake until vegetables are tender, about 1 hour. Raise oven temperature to 425 degrees. Remove foil and sprinkle with remaining tablespoon of cheese. Bake until golden brown, about 20 minutes. Let stand 10 minutes before serving.
  • Meanwhile, crisp sage leaves: Heat 1 inch vegetable oil in a small pot over medium-high heat until surface is shimmering slightly. Add a few leaves at a time (they'll bubble up) and cook until crisp, but still bright green, about 10 seconds. Transfer to a paper towel to drain. Season with salt. Top gratin with leaves.

Nutrition Facts : Calories 208 g, Cholesterol 6 g, Fat 9 g, Fiber 5 g, Protein 5 g, Sodium 135 g

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