Preheat your oven to 375 degrees Fahrenheit.
You will need a 2 quart baking dish.
5 cups fresh or frozen blueberries
4 Tablespoons sugar
3 Tablespoons flour
1/2 cup rolled oats
1/2 cup brown sugar
1/4 cup flour
1/4 teaspoon nutmeg, cinnamon, or ginger
1/4 cup butter
In a large bowl mix the 3 Tablespoons flour and 4 Tablespoons sugar. Add the blueberries and toss well to coat.
Pour into the baking dish.
In another bowl mix the remaining flour, brown sugar,rolled oats, and cinnamon.
Cut in the butter til the mixture is crumbly.
Sprinkle over the fruit.
Bake in the preheated oven for 30-35 minutes. The topping should be golden.