By Justin Chapple
2 3/4 cups all-purpose flour
1/2 cup plus 1 tablespoon granulated sugar
2 sticks unsalted butter, cubed and chilled
1/2 cup ice water
4 firm pears peeled, cored and cut into 3/4-inch wedges
1 1/2 cups cranberries
1 teaspoon ground ginger
1 large egg beaten with 1 tablespoon water
Sugar, for sprinkling
In a food processor, combine 2 1/2 cups of the flour with 1 tablespoon of sugar and 1 teaspoon of kosher salt and pulse to mix.
Add the butter and pulse in 1-second bursts until the mixture resembles coarse meal.
Drizzle the ice water over the mixture and pulse in 1-second bursts until the dough just comes together.
Turn the dough out onto a work surface, gather any crumbs and pat into 2 squares.
Wrap the squares and refrigerate until chilled, about 45 minutes.
Preheat the oven to 400°.
On a floured work surface, roll out 1 piece of the dough to a 12-inch square.
Slide the dough onto a large sheet of parchment paper, then slide onto a large baking sheet.
Repeat with the second piece of dough. Refrigerate for 15 minutes.
In a large bowl, toss the pears with the cranberries, ginger, 1/2 teaspoon of salt and the remaining 1/2 cup of granulated sugar and 1/4 cup of flour.
Remove both sheets of dough from the refrigerator, and spread the fruit evenly on 1 of the dough squares, leaving a 1-inch border.
Slide the other dough sheet onto a work surface, then ease it on top of the fruit.
Fold over the edge and crimp decoratively all around to seal. Brush the pie with the egg wash and sprinkle with sugar.
Cut 16 small slits in the top and freeze for 15 minutes.
Bake the pie for about 50 minutes, until golden and the pears are tender; rotate halfway through baking. Let cool. Cut the pie into squares and serve.
The slab pie can be stored at room temperature for up to 2 days.