This berry crumble symbolizes the sweetness of hope and the bittersweet memories of Bonnie Dahl that motivate Holly to solve the case.
Preheat oven to 350°F.
Mix berries with sugar and place in a baking dish.
In a separate bowl, mix flour, oats, brown sugar, and butter.
Sprinkle mixture over berries.
Bake for 25 minutes until golden brown.