PEACH-BLUEBERRY COBBLER

Peach-Blueberry Cobbler image

Provided by Martha Stewart

Number Of Ingredients 14

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2 3/4 pounds peaches, halved lengthwise, pitted, and cut into 3/4-inch-thick wedges (about 8 cups)
1 cup blueberries, (about 1/2 pint)
2/3 cup granulated sugar
3 tablespoons cornstarch
2 tablespoons packed light-brown sugar
1 tablespoon freshly squeezed lemon juice
1 teaspoon finely grated, peeled fresh ginger
Salt
2 cups all-purpose flour
2 teaspoons baking powder
1/2 cup cold unsalted butter, (1 stick), cut into small pieces
1 vanilla bean, halved lengthwise
1 cup plus 2 tablespoons heavy cream, plus more for brushing
Sanding sugar, for sprinkling

Steps:

Preheat oven to 375 degrees. with racks in upper and lower thirds. Stir together peaches, blueberries, 1/3 cup granulated sugar, the cornstarch, brown sugar, lemon juice, ginger, and a pinch of salt in a large bowl. Transfer to a 12-by-8 1/2-inch (2-quart) baking dish; set aside.
Whisk flour, baking powder, 1/2 teaspoon salt, and remaining 1/3 cup granulated sugar in a medium bowl. Cut butter into flour mixture using a pastry blender or 2 knives to form clumps that are no larger than small peas.
Scrape vanilla bean seeds into the cream; stir with a fork to combine. Discard pod. Add cream mixture to flour mixture; stir until a soft, sticky dough forms. Divide dough into 10 equal pieces; arrange over filling. Brush dough with cream, and sprinkle with sanding sugar.
Place a parchment-lined baking sheet on bottom rack of oven to catch juices. Bake cobbler on top rack directly over the baking sheet until topping is golden brown and juices are bubbling, 55 to 70 minutes. If topping is browning too quickly, cover loosely with foil. Let cool on a wire rack 1 hour before serving.