Blueberry Cobbler with Cake Mix

This blueberry cobbler with cake mix is the easiest summer dessert I know! A simple lemon-kissed blueberry filling goes into the dish, a buttery cake mix crumble goes on top, and 45 minutes later you’ve got something warm, golden, and bubbling that tastes like way more effort than it was. Serve it straight from the pan with a scoop of vanilla ice cream and don’t expect leftovers!

Before You Get Started

A few small details will take this from good to great. Here’s what to keep in mind before you start:

⇢ Stir the topping, don’t just dump it. Unlike a standard dump cake, you combine the cake mix and melted butter together first until a crumbly mixture forms. That extra minute gives you even coverage and a better texture across the whole dish.

⇢ Don’t thaw frozen blueberries. Fresh or straight-from-frozen both work here. If you thaw them first, they release too much liquid, the filling turns watery, and the texture can be mushy. Use them cold, right from the freezer.

⇢ Choose your dish based on the result you want. A 9×13-inch dish gives you a thinner layer of filling and a more spread-out topping. An 11×7-inch dish gives you a thicker, more cobbler-like result. Either works; just know what you’re going for.

How to Make Blueberry Cobbler with Cake Mix

This comes together in just a few simple steps. No mixer, no fancy technique, just a baking dish and about 10 minutes of hands-on time!

Step 1: Prep the Baking Dish

Preheat your oven to 350°F. Lightly grease a 9×13-inch baking dish with nonstick cooking spray, or use an 11×7-inch dish if you prefer a thicker, more old-fashioned cobbler. The smaller dish gives you a deeper layer of fruit and topping, while the larger dish spreads everything out a bit more but still bakes up beautifully.

Step 2: Make the Blueberry Filling

Add the blueberries directly to the prepared baking dish. You can use fresh or frozen berries here, just don’t thaw the frozen ones first. Sprinkle in the lemon zest, lemon juice, sugar, and a pinch of kosher salt, then toss everything together right in the dish until evenly combined.

⇢ The lemon zest is what really brings that bright, fresh flavor, so don’t skip it. A microplane makes quick work of zesting and gives you fine, fragrant pieces that melt right into the filling.

⇢ Swap the fruit: Raspberries, blackberries, or a mixed berry combination all work in place of blueberries. Use the same total amount.

Step 3: Mix the Cake Mix Topping

In a medium bowl, stir together the dry cake mix and melted butter. Do not prepare the cake mix according to the package directions. Instead, mix just until you get a crumbly texture that looks like wet sand or a streusel topping.

This step is what sets this recipe apart from a traditional dump cake. You’re creating a buttery crumble that bakes into a golden topping, not just sprinkling dry mix over the fruit. If it seems too dry or overly greasy, it’s usually just a butter ratio issue. You’re aiming for a mixture that clumps slightly when pressed.

⇢ Try lemon cake mix: Replace the yellow cake mix with lemon cake mix for an even more citrus-forward result. It pairs beautifully with blueberries.

⇢ Add a pinch of cinnamon: Stir a half teaspoon of cinnamon into the cake mix topping for a warmer, spiced flavor.

Step 4: Assemble and Bake

Sprinkle the cake mix crumble evenly over the blueberries, covering the surface as best you can without packing it down.

Bake uncovered for 45 to 50 minutes.

⇢ You’ll know it’s ready when the topping is deep golden brown and the blueberry juices are bubbling around the edges. There shouldn’t be any dry or powdery spots left on top. If the topping starts to brown too quickly before the filling is bubbling, loosely tent the dish with foil and continue baking. Since every oven is a little different, start checking around the 40-minute mark and rely on those visual cues.

Step 5: Serve

Let the cobbler rest for about 5 to 10 minutes before serving. This gives the filling a chance to thicken slightly so it’s not too runny. Scoop into bowls and serve warm.

A big scoop of vanilla ice cream is the classic pairing, but a dollop of whipped cream is just as good if that’s what you have on hand.

⇢ Scaling up: This recipe serves 12 from a 9×13. For a larger crowd, scale up by doubling all of the ingredients. Allow a few extra minutes of bake time for the thicker filling and crust.

Storage, Freezing, & Make-Ahead

• To store: Cover the baking dish tightly and refrigerate for up to 4 days.
• To reheat: Warm individual servings in the microwave for 20-30 seconds, or reheat the whole dish in a 350°F oven covered loosely with foil for 10-15 minutes.
• To freeze: Let the cobbler cool completely, then cover tightly and freeze for up to 2 months. Thaw overnight in the refrigerator before reheating.
• Make-ahead: This cobbler is best fresh from the oven, but it reheats well. You can assemble it and refrigerate unbaked for a few hours before baking. Let it sit at room temperature before it goes in the oven.

Frequently Asked Questions

More Cobbler Recipes to Try

• Easy Blueberry Cobbler (the from-scratch cast iron version)
• Blueberry Peach Cobbler (fresh fruit with a biscuit topping)
• Southern Peach Cobbler (with a Jiffy mix shortcut)
• Apple Cobbler (a fall version with a biscuit topping)
• Strawberry Cobbler (a from-scratch option that’s perfect for spring/summer)