3 Ingredient Lemon Blueberry Dump Cake

Name: 3-Ingredient Lemon Blueberry Dump Cake
Prep time: 10 min
Cook time: 50 min
Total time: 1 h
Cuisine: American
Ingredients: 2 and 1/4 cups fresh blueberries, divided (save 1/4 cup for the top); 3/4 cup butter, melted; 1 box (15.25 ounces) Lemon Cake Mix

Jump to Recipe

This delicious dessert is made with three simple ingredients consisting of fresh fruit, butter and a box of cake mix. Lemon Blueberry Dump Cake is great for after a family dinner, summer barbecues and it's so quick and easy to make! Enjoy with a big scoop of vanilla ice cream!

Lemon blueberry dump cake in white bowl with spoon.

If you've never made an easy dump cake recipe, you're going to love how quick, easy and simple this is to make and it takes 10 minutes or less to prepare.

If you love this blueberry dump cake, try this peach dump cake or pumpkin pecan dump cake next!

Blueberry lemon dump cake in white bowl with spoon and sliced lemon.

Ingredients

This recipe uses three simple ingredients that you can always find at the grocery store. The sweetness of the cake mix means that you won't even have to add any additional sweetener to the blueberries.

Lemon cake mix
Fresh blueberries
Butter

Substitutions and Variations

Substitute two cans of blueberry pie filling in place of the fresh blueberries. You can also use frozen blueberries. Simply add them to the recipe without thawing.
Spread two cans of lemon curd over top of the fresh blueberries before adding the dry cake mix.
You may substitute the lemon cake mix for white cake mix, vanilla cake mix or yellow cake mix.

How To Make Blueberry Lemon Dump Cake

You can find a full recipe card at the bottom of this post with an ingredients list and step by step instructions. I've added a few visual photos below, with instructions to guide you along. This is one of the easiest desserts that you will ever make!

Spray a 9x13-inch baking dish with non-stick spray, or grease lightly with butter.

Preheat oven to 350°F.

Fresh blueberries in the bottom of a 9x13-inch baking dish.

This is so quick and easy! Add 2 cups blueberries to the prepared baking dish.

Dry cake mix is sprinkled on top of blueberries in bottom of 9x13-inch baking dish that is filled with blueberries.

Sprinkle the dry cake mix over top of the blueberries. You do not need to add anything to the cake mix. Try and sprinkle it as evenly as possible, however perfection is not required!

Melted butter and blueberries are spread over top of the dry cake mix in 9x13-inch baking dish.

Next, melt the butter and drizzle melted butter evenly over top of the dry cake mix. Don't worry if there are a few small dry patches of cake mix. They will disappear during the baking process. Do not stir the mixture!!

Lastly, sprinkle the remaining ¼ cup of blueberries on top .

Bueberry lemon dump cake in white bowl with container of milk in the background.

Bake in 350°F preheat oven for 45 to 50 minutes. Top will be light golden brown and the blueberry filling might bubble up at the sides.

Serve blueberry dump cake plain or serve with with vanilla ice cream. A dollop of whipped cream or a sprinkle of powdered sugar is also delicious.

Storage Instructions

Store cooled leftover cake in a airtight container in the refrigerator for up to three days, or cover baking dish with plastic wrap.

FAQ's

Why do they call it a dump cake?

It is called a dump cake because you simply dump the ingredients into the baking dish without having to mix any of the ingredients.

Is a dump cake like a cobbler?

The main difference is that a dump cake uses boxed cake mix and can be made in a cobbler-style and a traditional cobbler is made with traditional baking ingredients.

How long will dump cake last?

A dump cake will last three to four days in the refrigerator.

Other Dump Cake Recipes To Enjoy

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