4 from 1 reviews
Twice-Baked Sweet Potatoes with Shallot and Parmesan Topping
Serves: 6
  • 4 small sweet potatoes (8 ounces each), unpeeled, each lightly pricked with fork in 3 places
  • 3 tablespoons unsalted butter, plus 2 tablespoons melted
  • 2 shallots, sliced thin
  • 2 slices hearty sprouted whole grain bread, crusts removed, cut into ⅛- to ¼-inch pieces
  • 1 ounce Parmesan cheese, grated (1/2 cup)
  • 1 teaspoon minced fresh thyme
  • Salt and pepper
  • 1 large egg, lightly beaten
  • 1 ounce of crumbled feta cheese (optional)
  1. Place potatoes in shallow baking dish. Microwave until skewer glides easily through flesh and potatoes yield to gentle pressure, 9 to 12 minutes, flipping potatoes every 3 minutes. Let potatoes cool for 10 minutes. Adjust oven rack to middle position and heat oven to 425 degrees.
  2. Melt 3 tablespoons butter in 10-inch skillet over medium heat. Add shallots and cook, stirring occasionally, until softened, 2 to 5 minutes. Transfer shallots to bowl. Add bread pieces, ¼ cup Parmesan, thyme, ¼ teaspoon salt, and ¼ teaspoon pepper to bowl with shallots. Toss to combine.
  3. Halve each potato lengthwise. Using spoon, scoop flesh from each half into second bowl, leaving about ⅛- to ¼-inch thickness of flesh. Place 6 shells cut side up on wire rack set in rimmed baking sheet (discard remaining 2 shells). Bake shells until dry and slightly crispy, about 10 minutes.
  4. Meanwhile, mash potato flesh with ricer, food mill, or potato masher until smooth. Stir in egg, 2 tablespoons melted butter, ½ teaspoon salt, and remaining ¼ cup Parmesan.
  5. Remove shells from oven and reduce temperature to 375 degrees. Divide mashed potato mixture evenly among shells. Top each filled shell with bread mixture. Bake until bread mixture is spotty brown, about 20 minutes. Let cool for 5 minutes before serving.
  6. TO MAKE AHEAD: Stuff potato shells as directed in step 5 but do not top. Store bread mixture at room temperature and refrigerate filled potatoes for up to 24 hours. To serve, top each shell and bake as directed, reducing oven temperature to 325 degrees and increasing baking time to 35 minutes.
WHY THIS RECIPE WORKS: We learned that a microwave start, instead of an initial bake, best maintained the integrity of the delicate sweet potato skins. Baking the scooped-out shells in the oven before stuffing transformed them into a toothsome, stable base. By adding an egg to the mashed flesh, we gave the otherwise watery sweet potato structure and velvety smoothness. Finishing with a toasted topping of large bread crumbs provided a crunchy counterpoint perfectly suited to this low-starch spud.
The skins of the sweet potato are edible and add an earthiness to the dish. When shopping, look for sweet potatoes that are uniform in size, with rounded ends.