A variation on twice-baked potatoes, these are an eye-catching takeoff on a sweet potato casserole. The sweet potato flesh is pureed with butter and milk, returned to the hollowed-out shells, and topped with mini marshmallows before a final baking.

　　You can puree the potatoes in a blender or a food processor; use the blender for an especially silky texture.

　　

Ingredients

Makes 8 servings

　　4 medium sweet potatoes (about 2 pounds), scrubbed and halved lengthwise

　　1/3 cup buttermilk

　　1/3 cup milk, or as needed

　　4 tablespoons (1/2 stick) butter

　　1/4 teaspoon salt

　　Freshly ground black pepper

　　1/2 cup miniature marshmallows for garnish

　　

Step 1

Adjust oven rack to lowest position and heat oven to 400°F.

　　

Step 2

Place potatoes cut side down on a foil- or parchment-lined baking sheet. Bake until fork-tender, about 30 minutes. Let cool slightly.

　　

Step 3

Holding a potato half with a pot holder, scoop potato flesh into a blender or food processor, leaving a 1/4-inch shell. Repeat with remaining potatoes; set shells aside.

　　

Step 4

With motor running, gradually add both milks to potatoes. Add butter, then process, adding a little more milk if necessary, until potatoes are silky smooth. Add salt and pepper to taste.

　　

Step 5

Spoon puree back into potato shells. Sprinkle marshmallows over potatoes. Place on baking sheet and bake until potatoes are hot and marshmallows are golden brown, 10 to 12 minutes. Serve hot.

　　Perfect Recipes for Having People Over