Active Time

　　15 min

　　Total Time

　　50 min

　　

Ingredients

Makes 4 servings

　　

For filling

1 1/2 pounds purple plums, cut into 1/2-inch wedges

　　1 cup blueberries (5 ounces)

　　1 cup blackberries (5 ounces)

　　1/3 to 1/2 cup packed light brown sugar (depending on sweetness of fruit)

　　

For topping

1 cup rolled oats

　　1/4 cup all-purpose flour

　　1/3 cup packed light brown sugar

　　1/2 stick unsalted butter, cut into bits and softened

　　1/4 teaspoon salt

　　

Step 1

Preheat oven to 425°F with rack in upper third.

　　

Step 2

Toss together all filling ingredients in a 2-quart shallow baking dish and bake 10 minutes.

　　

Step 3

Meanwhile, blend together all topping ingredients in a bowl with your fingertips until butter is evenly distributed and mixture is crumbly.

　　

Step 4

Stir fruit filling, then sprinkle oat mixture over it and bake until topping is crisp and golden and fruit is bubbling, about 30 minutes.