Ingredients
Equipment
Method
Make the pastry
- Preheat the oven to 375°F and grease a 9x13-inch baking dish with 1 teaspoon of the shortening.
- Whisk the flour and salt in a large bowl.
- Cut in the remaining shortening until the mixture has coarse, pea-size crumbs.
- Pour in the milk and toss with a fork until the dough holds together.
- Divide the dough into two portions, about two-thirds and one-third.
- Shape each portion into a rectangle, wrap, and refrigerate for at least 30 minutes.
Cook the filling
- In a medium bowl, whisk the cornstarch and water until smooth.
- Whisk in the granulated sugar, brown sugar, cinnamon, and nutmeg.
- Melt the butter in a 5-quart Dutch oven over medium heat.
- Whisk in the cornstarch mixture and bring to a simmer.
- Cook for 1 to 2 minutes, whisking, until the syrup thickens and turns glossy.
- Add the sweet potatoes and gently stir to coat.
- Cover and simmer over medium-low heat for 12 to 15 minutes, stirring gently once or twice, until the slices are just fork-tender.
- Remove from the heat and stir in the vanilla extract.
Assemble and bake
- Roll the larger portion of dough on a lightly floured surface into an 11x15-inch rectangle.
- Fit the dough into the baking dish and press it across the bottom and about 1 inch up the sides.
- Roll the smaller portion into a 10x14-inch rectangle.
- Cut the dough into 1-inch-wide strips.
- Spoon the sweet potatoes and syrup into the pastry-lined dish.
- Arrange the dough strips in a lattice over the filling.
- Fold the bottom crust over the strip ends and press to seal.
- Bake on the lower-middle oven rack for 45 to 55 minutes, until the pastry is golden brown and the filling bubbles in the center.
- Let the cobbler cool for at least 30 minutes before serving.
Notes
For clean pastry edges, keep the dough cold while rolling. Refrigerate leftovers in a covered container for up to 4 days; freeze for up to 2 months. For a dairy-free version, use unsweetened dairy-free milk and a plant-based butter alternative.
