Classic Blueberry Dump Cake Recipe: Fresh or Frozen

Blueberry Dump Cake is a simple, three-ingredient dessert that comes together in minutes and bakes into a warm, bubbly treat. Sweet blueberry filling combined with dry cake mix and slices of butter produces a crisp, golden topping that pairs beautifully with a scoop of vanilla ice cream or a dollop of whipped cream. This recipe is ideal when you want something delicious without complicated preparation.

This dump cake is perfect for busy weeknights, potlucks, or a quick weekend dessert. You don’t need mixing bowls — simply layer the ingredients in a greased baking dish and let the oven do the work. The result is reminiscent of a blueberry cobbler: juicy fruit below and a tender, slightly crunchy cake layer on top.

If you enjoy blueberry desserts, this straightforward Blueberry Dump Cake is a great staple to keep in your recipe collection. It can be adapted easily with different cake mixes, fruit fillings, or add-ins like nuts and coconut to suit your taste.

What’s in this post: Blueberry Dump Cake Recipe

• What is a Dump Cake?
• Ingredients
• Variation Ideas
• Step by Step Instructions
• Recipe Tips
• Topping Ideas
• Frequently Asked Questions
• Other Dump Cake Ideas

What is a Dump Cake?

A dump cake is exactly what it sounds like: you “dump” layers into a baking pan rather than mixing a batter. For this blueberry version, you spread the blueberry pie filling across the bottom of a greased dish, sprinkle dry cake mix over it, and top with sliced butter. The butter melts as it bakes, forming a crisp, sweet crust from the dry mix. There’s no need to whisk or beat — just assemble and bake.

Ingredients

• 1 box white cake mix (15.25 oz) — use the dry mix only, do not add eggs, oil, or water.
• 2 cans blueberry pie filling (about 21 oz each) — or roughly 4 cups fresh blueberries if using fresh fruit.
• 1/2 cup (1 stick) butter — cold and sliced thinly so it melts evenly.

Full ingredient amounts are also listed in the recipe card below.

Variation Ideas

• Try other cake mixes: Yellow, pound cake, chocolate, or lemon cake mix all work well. For a brighter flavor, use a lemon cake mix and finish with a squeeze of fresh lemon juice over the top before baking.
• Swap the fruit filling: Apple, cherry, raspberry, blackberry, mixed berry, or peach fillings are all delicious substitutes.
• Add nuts: Chopped pecans or walnuts mixed into the cake mix or sprinkled on top add texture and flavor.
• Tropical twist: Add some crushed pineapple or shredded coconut for a tropical variation.
• Crumble topping: If you have a little extra time, mix brown sugar, flour, butter, and chopped pecans for a simple crumble to scatter over the cake mix before baking.

Step by Step Instructions

• Step 1 — Preheat: Preheat your oven to 350°F (175°C).
• Step 2 — Prepare the pan: Grease a 9 x 13-inch baking dish with butter or nonstick spray. Pour the blueberry pie filling into the dish and spread it into an even layer.
• Step 3 — Add the dry mix: Evenly sprinkle the dry white cake mix over the blueberry layer so the filling is covered.
• Step 4 — Top with butter: Slice the cold butter into thin pats and arrange them across the surface so most of the cake mix has some butter on it. This helps the topping crisp up as it bakes.
• Step 5 — Bake: Bake for about 1 hour, or until the topping is golden brown and the filling is bubbling at the edges. Let the cake rest a few minutes before serving.

Recipe Tips

• Use cold butter: Cold butter sliced into thin pieces creates small pockets of fat that melt and form a crisp, flavorful top. Make sure to distribute the slices evenly.
• No extra sugar needed: Most pie fillings and cake mixes are already sweet. Taste a small sample if using fresh fruit and add a little sugar only if needed.
• Fresh vs. frozen fruit: If using frozen blueberries, thaw and drain excess liquid before assembling to prevent a soggy topping. For fresh berries, about 4 cups will replace two cans of pie filling.
• Watch the edges: The cake is done when the topping is golden brown and the filling is visibly bubbling. If you prefer a crunchier top, bake a few minutes longer and watch carefully so it doesn’t burn.

Topping Ideas

• Vanilla ice cream: A classic pairing; serve the dump cake warm with a large scoop on top.
• Whipped cream: Lightly sweetened whipped cream brightens the dessert.
• Sauces: Drizzle with caramel or chocolate sauce for extra indulgence.
• Nuts: Sprinkle chopped pecans or walnuts over the top for crunch.

Frequently Asked Questions

How do I store leftovers?

Wrap the baking dish tightly with plastic wrap or transfer leftovers to an airtight container and refrigerate. The cake will keep for several days in the fridge. Reheat individual portions in the microwave for 20–30 seconds or warm the whole pan in a 350°F oven for 10–15 minutes until heated through. Top with ice cream just before serving.

Can I freeze Blueberry Dump Cake?

Yes. Cool the cake completely, then wrap portions or the entire pan in plastic wrap and place in a freezer-safe container. It can be frozen for up to 3 months. Thaw in the refrigerator overnight and reheat before serving.

How can I tell when the cake is done?

There’s no raw batter in a dump cake, so check for a golden-brown topping and bubbling fruit filling around the edges. Start checking at about 40–45 minutes and bake until you reach your preferred crust color and texture.

Other Dump Cake Ideas

• Chocolate Dump Cake
• Chocolate Cherry Dump Cake
• Crockpot Chocolate Dump Cake
• Crock Pot Peach Dump Cake
• Pumpkin Dump Cake

If you make this Blueberry Dump Cake, note what you liked and any changes you made — it’s a wonderfully flexible recipe that can be adapted to your pantry and preferences.