1/2 cup (1 stick) cold unsalted butter, cut into small pieces
Whipped cream or vanilla ice cream, for serving
Directions
Preheat the oven to 350 degrees F. butter a 9-inch Pyrex pie plate.
Gently combine the berries with the sugar, flour and cinnamon; place in the prepared pie plate.
Prepare the topping: Combine the oats, flour, both sugars and salt in a bowl. Use a pastry blender or 2 knives to work n the butter until topping resembles coarse meal. Sprinkle evenly over the berries.
Place the pie plate on a baking sheet. Bake in the center of the oven until the fruit is bubbling and the topping is golden brown, about 1 hour. Remove the crisp to a rach to cool slightly.
Serve in dessert bowls with whipped cream or ice cream.