Blackberry Crisp

Preheat oven to 350°F. Toss together blackberries, cornstarch, lime zest, lime juice and 1/4 cup granulated sugar in a large bowl. Transfer to a 7- by-11-inch (2 -quart) baking dish.

Whisk flour, oats, brown sugar, salt, ginger and the remaining 3 tablespoons granulated sugar in a small bowl. Using a pastry cutter or your fingers, work butter into the flour mixture until the mixture resembles coarse sand. Drizzle oil over the mixture and continue working the mixture until it's evenly moistened and there are no large clumps. Sprinkle the flour mixture evenly over the blackberry mixture.

Bake until the topping is golden and the blackberries are bubbling, about 40 minutes. Let stand for 10 minutes before serving.