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We Tried the TikTok Lemon Blueberry Dump Cake and This is How It Turned Out

We made the popular online recipe from TikTok for Lemon Blueberry Dump Cake, and we’re eager to share our results with you. Learn how to prepare this super easy cake at home and how it worked out for us.

Lemon Blueberry Dump Cake

We were skeptical when we first heard of the TikTok Lemon Blueberry Dump Cake.

It seemed almost too good to be true—with just a few handpicked ingredients, you can create a delicious cake in minutes?

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We had to try it.

And what we found was actually a gigantic fail.

For starters, the TikTok recipe had a base of sweet blueberry biscuits and a can of vanilla frosting.

While that sounds like a great addition to a traditional dump cake, the blueberry biscuits quickly overwhelmed the dish.

I mean they rose while baking, as expected, and caused the dump cake to overflow in the oven and make a huge burned-on mess.

The TikTok Lemon Blueberry dump cake definitely did not turn out at all like the finished cake shown in the video.

So, we’re going to show you how to make a fantastic Lemon Blueberry Dump Cake.

This recipe is not the TikTok Lemon Blueberry Dump Cake recipe – it’s one that actually turns out amazing and so easy to make.

Disclosure – I may get a small commission for purchases made through affiliate links in this post.

lemon blueberry dump cake using pie filling tiktok
This image is how the Lemon Blueberry Dump Cake recipe on TikTok actually turns out. It’s nothing like what is shown in the viral video.

Key to Success #1 – Blueberry Pie Filling For the Win

Blueberries and lemons are a classic flavor combination.

But Blueberry Lemon dump cake is a truly special way to enjoy the two together.

Not only is this 3-ingredient dessert incredibly delicious, but it’s also incredibly easy to make.

Dump cakes are so named because you don’t have to mix all the ingredients together.

You just “dump” them into the pan!

This makes them great for busy weeknights when you need something tasty and quick.

A classic Lemon Blueberry Dump Cake starts with two cans of blueberry pie filling and one box of lemon supreme cake mix.

First, spread both cans of pie filling evenly in the bottom of your baking dish.

Next, sprinkle the cake mix over the top.

Finally, slice 1 ½ cups of butter into small tabs and arrange them on top of the cake mix.

Do not mix together!

Bake uncovered for 45-50 minutes at 350°F (177°C).

Lemony Blueberry Dump Cake with 3 ingredients
This is how our Lemon Blueberry Dump Cake actually turns out – beautiful and golden brown with lots of blueberry flavor!

Key to Success #2 – Butter Your Cake Mix Using Cold Butter Tabs

When it comes to making a dump cake, knowing how to cut and arrange the butter on top is key to achieving optimal flavor and texture.

Cutting butter into tabs is an essential step that helps ensure that the butter melts evenly across the top of the cake mix and creates a delicious, moist crumb topping.

Not only does this help create a perfectly balanced dump cake.

But it’s also much easier than trying to melt large amounts of butter before adding it to the dry ingredients.

When preparing the butter for your dump cake, start by cutting one and a half sticks of cold butter and slicing them lengthwise into thirds or fourths.

Then cut these pieces crosswise into small slices about 1/4-inch thick.

This will create small ‘tabs’ which are easy to spread over your dry ingredients in an even layer.

how to arrange butter on top of a dump cake

Be sure not to mix together the butter and dry ingredients as this will result in a gummy texture in your finished cake.

Once you have placed your tabs of butter on top of your dry ingredients, pop it in the oven and bake until golden brown!

This should take 45-50 minutes or until a toothpick inserted into the center comes out clean.

But be sure to watch it because sometimes the topping can have dry and powdery spots where there is not enough butter.

To avoid this issue, spray the dry spots with a little bit of nonstick cooking spray.

This will add enough moisture to the cake mix to allow all of the toppings to get moist and golden brown.

lemon blueberry dump cake with blueberry pie filling

Key to Success #3 – Serve Warm With a Creamy Topping

This indulgent Lemon Blueberry Dump Cake is a heavenly treat that balances the tartness of the lemon cake with the sweetness of the blueberries.

The crunchy bits of buttery topping make it even more delicious.

And since this recipe only requires three ingredients, it’s easy to whip up any time you need an indulgent dessert without much fuss or effort.

Serve it warm with ice cream or sweetened whipped cream for an extra special treat!

Dump cakes are such a great option for busy home cooks who want something delicious without all the fuss.

Whether you choose a Blueberry Lemon version like this one.

Or experiment with one of our other flavors, such as caramel apple dump cake, dump cakes are sure to become a weeknight staple in your home kitchen!

Lemon Blueberry Dump Cake with Blueberry Pie Filling and Lemon Cake mix

Save this Blueberry Lemon Dump Cake recipe to your favorite Dump Cake Recipes board or your Weeknight Desserts board.

Blueberry Lemon Dump Cake
Lemon Blueberry Dump Cake

Lemon Blueberry Dump Cake

Yield: 16
Prep Time: 10 minutes
Cook Time: 50 minutes
Total Time: 1 hour

Treat your family to the delightful flavors of lemon and blueberry with this easy-to-make Lemon Blueberry Dump Cake.

This is the perfect dessert for any occasion, using just a few simple ingredients to create a moist and delicious cake loaded with sweet and tart flavors that everyone will love.


  • 1 box (15 oz) Lemon Supreme cake mix
  • 2 cans (21 oz) blueberry pie filling
  • 1 1/2 cups butter


  1. Preheat oven to 350 degrees F. Grease a 9x13-inch baking dish.
  1. Spread both cans of pie filling into the bottom of the baking dish.
  1. Sprinkle cake mix over the pie filling layer.
  2. Slice butter into tabs and arrange them evenly on the cake mix. Do not mix together.
  3. Bake uncovered for 45-50 minutes. *See Note
  4. Serve with ice cream or sweetened whipped cream.


Tip! Check your dump cake about 30 minutes into baking. If you see some dry spots where the cake mix looks powdery, spray a little nonstick cooking spray over the area. That will add moisture and fix those dry spots right away.

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Nutrition Information:
Yield: 16 Serving Size: 1
Amount Per Serving: Calories: 312Total Fat: 20gSaturated Fat: 12gTrans Fat: 1gUnsaturated Fat: 6gCholesterol: 46mgSodium: 407mgCarbohydrates: 32gFiber: 1gSugar: 17gProtein: 2g

Nutrition Information Provided For Educational and Informational Purposes Only.

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Beth K

Saturday 27th of May 2023

If I added additional fresh blueberries to the canned, how do you think it would turn out? Could I add additional lemon flavor to this cake by adding some fresh lemon zest? It maybe a lemon icing drizzle?


Saturday 27th of May 2023

You can definitely add more fresh blueberries to the canned. You can probably even reduce the pie filling to 1 can and replace it with a pint or so of fresh blueberries to make it less sweet. You can add fresh lemon zest. I think a lemon icing drizzle sounds fantastic if you don't want to top it with ice cream.

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