I adapted this Berry Crumble recipe from The Fitnessista
Amy's Berry Crumble
Serves 12 | Difficulty: Easy
Prep time: 10 minutes | Cook time: 30-45 minutes
Cooking spray or oil
6-8 cups berries, fresh or frozen (8 cups = 2 quarts; if using frozen, use two bags, 12-16 oz. each)
[optional: 1-2 Tbs. cornstarch if using frozen berries]
2 cups oats (old-fashioned, quick oats, steel cut, whatever you have is fine)
1 cup all-purpose flour
1 cup sugar (white sugar, brown sugar, or a combination; or the equivalent artificial sweetener)
1 tsp. salt
1 tsp. ground cinnamon
1/2 tsp. ground nutmeg
1-1/2 sticks (3/4 cup) cold butter
Heat oven to 350° F. Lightly oil a 9"x13" baking dish with cooking spray.
If using frozen berries, toss berries with cornstarch so that the juices will thicken as it bakes.
In a large bowl, mix together all the dry ingredients (from oats to nutmeg). Cut butter into the dry ingredients with a pastry cutter or knife until mixture resembles small crumbs.
Press half of the oat mixture into the baking dish, top with berries, and sprinkle the remaining oat mixture on top.
Bake at 375° F for 30 minutes (fresh berries) or 45 minutes (frozen berries), until the oats are toasted and the berries are bubbling around the edges.