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Plum-Blackberry Streusel Pie

5.0

(13)

Image may contain Plant Fruit Food Blueberry Meal and Dish
Photo by Quentin Bacon

Beneath a humble, oaty streusel topping lies a sleek, inky jumble of plums and blackberries—talk about a delicious contrast. A combination of cornstarch and tapioca in the filling helps to keep the colors of the fruit true and to set up their juices nicely without becoming too thick.

Recipe information

  • Total Time

    6 hr (includes making dough and cooling pie)

  • Yield

    8 servings

Ingredients

1 3/4 pound ripe plums, pitted and quartered
3/4 pound blackberries (2 cups)
1 1/2 cups sugar, divided
3 tablespoons quick-cooking tapioca
2 tablespoons cornstarch
1 teaspoon grated lemon zest
3/4 teaspoon salt, divided
1 cup old-fashioned rolled oats
1/2 cup all-purpose flour
1 stick cold unsalted butter, cut into bits
Equipment: a 9 1/2-inch deep-dish pie plate

Preparation

  1. Step 1

    Put a foil-lined large baking sheet in lower third of oven and preheat oven to 375°F.

    Step 2

    Toss plums and blackberries with 1 cup sugar, tapioca, cornstarch, zest, and 1/4 teaspoon salt in a large bowl.

    Step 3

    Roll out dough into a 13-inch round on a lightly floured surface with a lightly floured rolling pin. Fit into pie plate. Trim excess dough, leaving a 1/2-inch overhang. Fold overhang under and press against rim of pie plate, then crimp decoratively. Chill while making streusel.

    Step 4

    Stir together oats, flour, and remaining 1/2 cup sugar and 1/2 tsp salt. Blend in butter with your fingertips until mixture forms small clumps.

    Step 5

    Mound filling in shell. Crumble streusel evenly over filling.

    Step 6

    Bake pie until streusel is golden and filling is bubbling, 1 1/4 to 1 1/2 hours. Cool completely, 3 to 4 hours.

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