This tart makes the best of in-season plums, but you can substitute any stone fruit, like halved cherries, apricots, or nectarines.
Makes one 9-inch tart
Ingredients
- Vanilla Tart Dough, fitted into a 9-inch tart pan and chilled
- 1 1/2 lb plums (7 to 8 medium), rinsed, halved, and pitted
- 1/2 cup packed light brown sugar
- 1 tablespoon finely chopped candied ginger
- 3 tablespoons cornstarch
- 1/2 teaspoon ground cinnamon
- 1/2 teaspoon ground ginger
- 1 teaspoon fresh lemon juice
Nut Streusel
- 1/2 cup sugar
- 1/2 cup all-purpose flour
- 1 teaspoon ground cinnamon
- 1/4 teaspoon kosher salt
- 4 tablespoons (1/2 stick) cold unsalted butter, cut into 1/2-inch cubes
- 1/2 cup almonds (2 1/2 oz) or other nuts, toasted and roughly chopped
Directions
- Preheat the oven to 375°F and set the rack in the lowest position.
- Place the plums on a rimmed baking sheet and roast them until soft, 20 to 30 minutes. Transfer the baking sheet to a cooling rack. Let cool for about 20 minutes, or until the plums can be handled. If necessary, slice or chop the plums into smaller pieces.
- Meanwhile, for the nut streusel: in a medium bowl, combine the sugar, flour, cinnamon, and salt.
- Add the butter and chopped nuts to the flour mixture, tossing to coat. Cut the fat into the mixture using your fingertips, a pastry blender, or two forks until the mixture looks like coarse irregular crumbs. Set aside until needed.
- In a medium bowl, combine the roasted plums, brown sugar, candied ginger, cornstarch, cinnamon, ground ginger, and lemon juice. Toss to combine and then immediately pour the filling into the prepared crust.
- Distribute the nut streusel evenly over the plums.
- Place the tart on a rimmed baking sheet. Bake until the filling is bubbly and thick, 20 to 30 minutes. Remove the tart from the oven and place it on a cooling rack. Let cool for 1 to 2 hours. The filling will continue to thicken and set as the tart cools.