Ingredients
Method
- Heat the oven to 375°F and butter a 3-quart baking dish.
- Toss the frozen blackberries with granulated sugar, cornstarch, lemon juice and 1/4 teaspoon salt.
- Spread the berries in the dish.
- Mix the flour, cornmeal, brown sugar and 1/2 teaspoon salt, then rub in the butter until clumps form.
- Scatter the crumbs loosely over the frozen berries.
- Bake for 46 to 50 minutes until the topping is crisp and filling bubbles vigorously in the center; rest 30 minutes.