Dump frozen blueberries straight into a casserole dish, add just 3 simple ingredients, and watch what happens when this turns into an unbelievably good dessert your family won’t stop eating.
This 4-Ingredient Oven-Baked Blueberry Dessert proves that a few simple pantry staples can create a rich, comforting treat with almost no effort. As the dessert bakes, the frozen blueberries release their juices, creating a sweet, bubbling filling that softens the cake mix from underneath. The melted butter helps form a golden topping with lightly crisp edges, giving the dessert a cobbler-like texture without any complicated steps or mixing bowls.
4-Ingredient Oven-Baked Blueberry Dessert
Ingredients
- 4 cups frozen blueberries (do not thaw)
- 1/2 cup granulated sugar
- 1 box (15.25 oz) yellow cake mix, dry
- 1/2 cup unsalted butter, melted
Instructions
1. Prepare the base
Preheat the oven to 350°F (175°C) and lightly grease a 2-quart baking dish. Spread the frozen blueberries evenly across the bottom.
2. Add the sugar
Sprinkle the granulated sugar evenly over the blueberries without stirring.
3. Layer the topping
Pour the dry cake mix evenly over the berry layer. Drizzle the melted butter across the surface as evenly as possible.
4. Bake
Bake for 40–50 minutes, until the top becomes golden brown and the blueberry filling bubbles around the edges.
5. Cool slightly before serving
Allow the dessert to rest for 10–15 minutes so the filling can thicken slightly before serving.
The finished dessert has a warm, juicy blueberry filling topped with a soft cake-like layer and lightly crisp golden edges.
