Step 1

Wash hands with soap and water.

Step 2

Preheat the oven to 375 °F.

Step 3

If using fresh blueberries, wash and drain them. Put the fresh or frozen blueberries in a 9-inch pie plate or an 8-inch by 8-inch baking dish.

Step 4

In a small bowl, use a fork to mix butter or margarine, flour, sugar, oats and cinnamon.

Step 5

Sprinkle oat mixture over the blueberries.

Step 6

Bake for about 25 minutes. Enjoy while warm!

Step 7

Refrigerate leftovers within 2 hours.