Here's one, don't know if this is what you are looking for.
The Firelight Inn
Duluth, Minnesota
Specialty Recipe
Blueberry Crisp
Ingredients - Filling
5 cups fresh blueberries
1 Tablespoon fresh lemon juice
1 teaspoon pure vanilla extract
Ingredients - Topping
3/4 cup brown sugar, packed
1/2 cup flour
1/2 teaspoon cinnamon
3/4 cup oatmeal, uncooked
1/4 cup cold butter, cut up
Preheat oven to 375 degrees. Spread blueberries evenly onto bottom of a lightly greased 13 x 9-inch glass baking dish. Mix lemon juice and vanilla in a small bowl and sprinkle evenly over blueberries.
In a bowl, mix topping ingredients together. Sprinkle evenly over blueberries. Bake for 35 to 40 minutes. Serve warm.
Serves: 10