If you’ve been searching for a dessert that’s as simple as it is scrumptious, look no further than the Blueberry Lemon Dump Cake Recipe. This delightful, fuss-free cake brings together the tart brightness of lemon zest and the luscious, juicy sweetness of blueberry pie filling, all enveloped in a tender vanilla cake crust with a pleasantly crunchy walnut topping. It’s the ultimate comfort dessert that feels homemade and indulgent without spending hours in the kitchen. Whether you’re whipping it up for a family gathering or a spontaneous treat, this Blueberry Lemon Dump Cake Recipe will become your new go-to for easy, crowd-pleasing desserts.

Ingredients You’ll Need
Gathering the ingredients for this Blueberry Lemon Dump Cake Recipe is refreshingly straightforward, yet every item has a special role. From the creamy vanilla cake mix that creates a soft, golden base to the fresh lemon zest that adds zesty brightness, each component enhances the vibrant flavors and textures of the final cake.
- Cooking spray: Essential for greasing the pan to ensure the cake doesn’t stick and bakes evenly.
- 2 (20-ounce) cans blueberry pie filling: The star ingredient that provides juicy sweetness and a beautiful deep blue color.
- 1 teaspoon lemon zest (from 1 large lemon): Adds a burst of citrusy brightness that perfectly balances the rich blueberries.
- 1 box vanilla cake mix: Your easy-to-use base that bakes into a delicate, fluffy crust.
- ½ cup chopped walnuts: Brings a lovely crunch and nutty flavor to complement the softness of the cake.
- 1 stick (½ cup) salted butter, cut into small pieces: Creates a golden, buttery topping that melts into the cake for richness.
How to Make Blueberry Lemon Dump Cake Recipe
Step 1: Preheat and Prep
Begin by heating your oven to 350°F (175°C), a moderate temperature that ensures the cake cooks through without drying out. Grease a 9×13 inch baking pan generously with cooking spray. This initial step may seem small, but it’s crucial for easy removal and to keep the dump cake’s edges perfectly tender and not stuck to the pan.
Step 2: Layer Ingredients
This is where the magic starts. Spread the entire blueberry pie filling evenly in the prepared pan, creating a vibrant, juicy layer that will infuse the cake with flavor throughout. Next, sprinkle the fresh lemon zest evenly across the filling; this zesty touch brightens every bite and balances the sweetness beautifully. Then, evenly cover the filling and zest with the dry vanilla cake mix—it’s like creating a cozy blanket for the blueberries. Scatter the chopped walnuts over the cake mix to add texture and a subtle nutty flavor. Finally, dot the surface with small pieces of the salted butter; as they melt during baking, these buttery pockets enrich the cake’s golden topping.
Step 3: Bake to Perfection
Place the pan in your preheated oven and bake for about one hour. Keep an eye on the top to avoid over-browning; if it starts to darken too much, gently cover it with aluminum foil. This careful baking develops a crispy, golden crust while the interior remains soft, juicy, and bursting with blueberry flavor.
Step 4: Cool Slightly and Serve
Once out of the oven, let the cake cool just enough so it holds together but stays deliciously warm. This slight cooling makes it easier to serve while still preserving the comforting warmth and melty texture that makes this Blueberry Lemon Dump Cake Recipe so irresistible.
How to Serve Blueberry Lemon Dump Cake Recipe

Garnishes
While this cake is perfect on its own, topping it with a scoop of creamy vanilla ice cream or a dollop of freshly whipped cream takes it to another level. These additions add a cool, smooth contrast to the warm, luscious cake, enhancing its flavor and delighting every palate.
Side Dishes
If you’re serving this cake at a gathering, pair it with a light, refreshing side like a simple lemon-mint salad or a platter of fresh berries. These sides complement the cake’s richness and keep the dessert experience balanced and vibrant.
Creative Ways to Present
For a fun twist, serve individual portions of this Blueberry Lemon Dump Cake Recipe in cute mason jars or ramekins, layered with extra lemon zest and crushed walnuts on top. Add a sprig of mint for an elegant touch that will impress your guests with minimal effort.
Make Ahead and Storage
Storing Leftovers
Leftover dump cake keeps wonderfully in the refrigerator, covered tightly with plastic wrap or stored in an airtight container. It will stay fresh and flavorful for up to 3 to 4 days, making it perfect for enjoying throughout the week.
Freezing
To freeze, wrap the blue berry lemon dump cake tightly in plastic wrap and then in aluminum foil or place it in a freezer-safe container. It can be stored for up to two months, making it easy to enjoy this delightful treat anytime you crave it.
Reheating
Reheat individual portions in the microwave for about 20 to 30 seconds or warm the whole cake in an oven preheated to 325°F (160°C) for 15 to 20 minutes. Adding a scoop of ice cream or whipped cream when serving after reheating brings back that fresh-baked experience beautifully.
FAQs
Can I use fresh blueberries instead of canned pie filling?
While fresh blueberries can be used, canned blueberry pie filling is recommended because of its thick consistency and added sweetness, which help the cake set properly and maintain its signature juicy texture.
Is it necessary to use salted butter?
Salted butter adds a subtle saltiness that balances the sweetness beautifully, but if you only have unsalted butter, you can use it—just add a pinch of salt to the cake mix for that perfect flavor harmony.
Can I substitute the walnuts for another nut or skip them?
Absolutely! Pecans or almonds work wonderfully if you’d like a different nutty flavor. If you’re allergic or prefer no nuts, simply omit them; the cake will still be delicious and moist.
What kind of vanilla cake mix works best?
Any good-quality boxed vanilla cake mix will do just fine. Avoid mixes with extra pudding or frosting packets, as the classic vanilla flavor and texture complement the blueberries best.
How do I prevent the cake from getting too dark on top?
Keep an eye on the cake while baking, and if the top starts to brown too quickly, loosely cover it with foil. This helps the cake finish baking without burning or drying out.
Final Thoughts
This Blueberry Lemon Dump Cake Recipe is a truly wonderful dessert that marries ease with incredible flavor. It’s a perfect way to brighten up any day with very little effort but maximum delight. I encourage you to try making it soon and watch how it becomes a beloved staple in your dessert rotation, bringing smiles and satisfied sighs after every bite.
Print
Blueberry Lemon Dump Cake Recipe
- Prep Time: 10 minutes
- Cook Time: 1 hour
- Total Time: 1 hour 10 minutes
- Yield: 10 servings
- Category: Dessert
- Method: Baking
- Cuisine: American
Description
This Blueberry Lemon Dump Cake is a simple, delightful dessert featuring sweet blueberry pie filling layered with zesty lemon and topped with a buttery vanilla cake mix and crunchy walnuts. Baked to perfection, it offers a warm and comforting treat that’s perfect for any occasion.
Ingredients
Blueberry Layer
- 2 (20-ounce) cans blueberry pie filling
- 1 teaspoon lemon zest (from 1 large lemon)
Cake Topping
- 1 box vanilla cake mix
- ½ cup chopped walnuts
- 1 stick (½ cup) salted butter, cut into small pieces
Other
- Cooking spray
Instructions
- Preheat and Prep: Preheat your oven to 350°F (175°C). Grease a 9×13 inch baking pan thoroughly with cooking spray to prevent sticking.
- Layer Ingredients: Evenly spread the blueberry pie filling across the bottom of the prepared pan. Sprinkle the lemon zest over the pie filling to infuse a bright citrus flavor. Next, evenly distribute the dry vanilla cake mix over the blueberry layer. Sprinkle the chopped walnuts evenly on top, and finally dot the surface with small pieces of salted butter to add richness and moisture during baking.
- Bake: Place the pan in the preheated oven and bake for 1 hour. Check occasionally during baking to ensure the top does not brown too much. If it starts to get too dark, loosely cover the pan with aluminum foil to protect the topping while allowing it to continue baking.
- Cool and Serve: Remove the cake from the oven and let it cool slightly to set. Serve warm, optionally topped with a scoop of vanilla ice cream or a dollop of whipped cream for an extra indulgent dessert.
Notes
- Use fresh lemon zest for the best citrus flavor.
- You can substitute chopped pecans or almonds for walnuts if preferred.
- Allowing the cake to cool slightly enhances the flavors and makes it easier to serve.
- Leftovers can be covered and refrigerated for up to 3 days; reheat gently before serving.

