Ingredients
Method
- Preheat the oven to 350 degrees F (175 degrees C).
- Mix blueberries, sugar, and cinnamon in a 9x13-inch pan; spread evenly in the pan. Cover blueberry mixture with dry cake mix. Drizzle melted butter over cake mix; do not stir.
- Bake until the top is light golden brown, about 30 minutes.
