Sweet Potato Casserole Recipe
- 6 pounds (2.8kg) moist sweet potatoes, such as ruby or garnet yams (about 6 large potatoes; see note)
- 8 tablespoons unsalted butter (1 stick; 115g)
- 8 sprigs fresh thyme and/or sage
- 1 (4-inch) knob peeled fresh ginger, finely grated (about 1 tablespoon; 15g)
- 1/4 cup (60g) buttermilk or sour cream
- Kosher salt
- 2 cups mini marshmallows (3 ounces; 90g) (see note)
- Adjust oven rack to center position. Place 2 large sheets of heavy-duty aluminum foil on a work surface. Working with one sheet at a time, place half of potatoes in center. Fold up foil and crimp edges to seal tightly. Repeat on second sheet with rest of potatoes. Transfer pouches to a rimmed baking sheet and place in oven. Set oven to 300u0b0F (149u0b0C). Roast until a thin skewer inserted into potatoes goes in with no resistance, about 2 hours. Remove from oven and set aside until cool enough to handle.
- Meanwhile, melt butter in a medium saucepan over medium-low heat, swirling gently until particles are pale golden brown and smell nutty. Add herb sprigs; herbs may cause brown butter to splatter at first, so take care. Swirl herbs in brown butter off-heat until frizzled. Set aside.
- Peel sweet potatoes and discard skins. Add flesh to a large bowl or the bowl of a stand mixer. Beat with the whisk attachment or with a handheld mixer until smooth and fluffy, about 2 minutes. Strain brown butter into potatoes, discarding frizzled herbs. Beat in ginger, then beat in buttermilk or sour cream. Season to taste with salt.
- When ready to finish dish, preheat oven to 375u0b0F (190u0b0C). Scrape potatoes into a 2-quart baking dish, smoothing surface with a rubber spatula. Bake until heated through, about 30 minutes. Increase oven temperature to 475u0b0F (246u0b0C) and top with mini marshmallows. Bake until marshmallows are melted and lightly browned, about 3 minutes (keep an eye on them, as they can brown and then burn very quickly). Serve.
sweet potatoes, unsalted butter, thyme, fresh ginger, buttermilk, kosher salt, marshmallows
Taken from www.seriouseats.com/recipes/2015/11/sweet-potato-casserole-marshmallow-recipe.html (may not work)