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This dump cake is sweet, buttery, and incredibly easy to make. The top bakes into a golden, slightly crisp layer while the blueberry filling stays soft and jammy underneath. It is the perfect low-effort dessert that feels cozy and crowd-pleasing.

Golden baked blueberry lemon dump cake in a glass baking dish with crisp topping and bubbling edges.

TikTok Viral Blueberry Dump Cake

This blueberry dump cake went viral on TikTok because it is an easy, no-fail recipe anyone can make. It bakes in one dish, only needs 3 ingredients,  takes ten minutes to make, and everyone loves it. This is one of those recipes you will make again and again because it’s just that good and super simple.

When citrus season hits, I find myself reaching for all my lemon favorites like these Blueberry Swim Biscuits, this Lemon Pesto Sauce, this Creamy Lemon Chicken, and this Lemon Poke Cake.

Close-up of blueberry lemon dump cake with vanilla ice cream melting over a spoonful showing creamy and fruit-filled texture.

Ingredients & Helpful Tips

  • 2 (20-ounce) cans blueberry pie filling – This serves as the base of this dessert, providing both sweetness and structure. Using canned filling keeps things simple and consistent. If you want a slightly less sweet version, you can swap one can with homemade blueberry compote or add a handful of fresh blueberries.
  • 1 (15.25 oz) box lemon cake mix – Adds a bright citrus flavor that balances the richness of the filling. The dry mix is sprinkled directly on top, which is what gives this dessert its signature texture. If lemon is not your preference, yellow or white cake mix can be used for a more neutral flavor.
  • ½ cup salted butter, thinly sliced – This is what transforms the dry cake mix into a golden topping. Slice it thinly and spread it evenly so the entire surface bakes up with a crisp finish. If you notice dry patches after baking, it usually means the butter was not evenly distributed.
Lemon cake mix, blueberry pie filling, and sliced butter arranged in a baking dish for blueberry lemon dump cake.

How To Make Blueberry Lemon Dump Cake

This blueberry lemon dump cake layers blueberry pie filling with dry lemon cake mix and butter, then bakes into a golden, crisp topping with a soft, jammy center. 

  1. Prep Oven: Preheat the oven to 350°F. Lightly grease a 9×13-inch baking dish.
  2. Add Filling: Pour the two cans of blueberry pie filling into the bottom of the dish. Spread it evenly.
  3. Add Cake Mix: Sprinkle the dry lemon cake mix evenly over the blueberries. Do not stir the mixture.
    Step by step layering of blueberry pie filling and dry lemon cake mix in a baking dish for dump cake.
  4. Add Butter: Arrange the thinly sliced butter evenly over the dry cake mix.
  5. Bake: Cover the baking dish with foil. Bake on the center rack for 1 hour and 10 minutes. The top should be golden brown, and the edges should be bubbling.
  6. Serve: Remove the pan from the oven. Serve warm with ice cream (optional). 
    Sliced butter placed over cake mix before baking followed by golden baked blueberry lemon dump cake.

Recipe Tips

  • Because this cake is very moist, don’t rely on a toothpick test. Look for bubbling around the edges and a golden, slightly crisp top to know it’s done.
  • Slice the butter thinly and distribute it evenly so the topping bakes uniformly.
  • Do not mix the layers. Keeping them separate is what creates the classic dump cake texture.
  • Check for dry spots before baking. Add a small extra piece of butter where needed to avoid powdery patches. 
Blueberry lemon dump cake served warm with vanilla ice cream and visible jammy blueberry filling.

If you make this blueberry lemon dump cake, share how it turned out for you. Leave a comment, save the recipe for later, or share it with someone who loves an easy dessert that still feels homemade.

Golden baked blueberry lemon dump cake in a glass baking dish with crisp topping and bubbling edges.
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Blueberry Lemon Dump Cake (TikTok Viral Recipe)

By Jillian Wade
Blueberry Lemon Dump Cake is very simple to make. It features a golden, crisp topping and a blueberry filling made with only three ingredients.
Prep: 10 minutes
Cook: 1 hour 10 minutes
Total: 1 hour 20 minutes
Servings: 8 people

Equipment

  • 9×13-inch baking dish
  • can opener
  • Cutting board
  • Knife

Ingredients 

  • 2 (20-ounce) cans of blueberry pie filling
  • 15.25 oz box lemon cake mix
  • ½ cup salted butter, thinly sliced

Instructions 

  • Preheat oven to 350°F. Lightly grease a 9×13-inch baking dish.
  • Pour the blueberry pie filling into the bottom of the dish and spread evenly.
  • Sprinkle the dry cake mix evenly over the top. Do not stir.
  • Arrange the sliced butter evenly over the cake mix.
  • Cover with foil and bake on the center rack for 1 hour and 10 minutes, or until the top is golden brown and the edges are bubbling.
  • Remove from the oven and serve warm. This is delicious with a scoop of vanilla ice cream.

Notes

Storage Tips
  • Store leftovers in the refrigerator, covered, for up to 4 days. The texture will soften slightly as it sits, though the flavor remains rich and balanced.
  • To reheat, warm individual portions in the microwave or place the baking dish back in the oven at a low temperature until heated through.
  • This dessert can be assembled ahead of time and baked just before serving, making it ideal for gatherings or holidays.
  • Freezing is possible, though the topping may lose some of its crisp texture after thawing.
  • For serving, add a scoop of vanilla ice cream or a spoonful of whipped cream to contrast the warm filling.

Nutrition

Serving: 1slice, Calories: 557kcal, Carbohydrates: 107g, Protein: 3g, Fat: 13g, Saturated Fat: 8g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 3g, Trans Fat: 1g, Cholesterol: 31mg, Sodium: 502mg, Potassium: 192mg, Fiber: 4g, Sugar: 77g, Vitamin A: 386IU, Vitamin C: 1mg, Calcium: 156mg, Iron: 2mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Course: Dessert
Cuisine: American
Like this? Leave a comment below!

Recipe FAQs

Can I use a different filling?

Absolutely. Yellow, white, or even vanilla cake mix would work well.

Can I use a different pie filling flavor?

Yes, any pie filling works great here. Cherry, peach, or apple are all delicious options.

Why is my cake mix still powdery in spots?

This probably means the butter did not spread to that spot. Add slices of butter to the area and bake for a couple of more minutes.

Can I make this gluten-free?

Yes, use a gluten free cake mix and double check the pie filling ingredients.

Can I use fresh blueberries instead of pie filling?

Yes, though you will need to add sugar and a thickener like cornstarch to create a similar consistency.

About Jillian Wade

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