Lemon Blueberry Dump Cake Easy and Tasty Delight

Evelina Fairweather

Evelina Fairweather

Published April 27, 2026

This post may contain affiliate links.

PREP TIME

15 mins

COOK TIME

35 mins

SERVINGS

8-10

Lemon Blueberry Dump Cake Easy and Tasty Delight

Welcome to the world of Lemon Blueberry Dump Cake! If you’re looking for a quick and tasty dessert, you’re in the right place. This easy recipe uses fresh blueberries, lemon cake mix, and lemon-lime soda to create a sweet treat in no time. Whether for a family dinner or a casual gathering, this delightful cake will wow your guests. Let’s dive into the fun of baking this simple dessert!

Why I Love This Recipe

  1. Easy to Make: This dump cake requires minimal effort, perfect for busy days or last-minute gatherings.
  2. Deliciously Tangy: The combination of lemon and blueberries creates a refreshing and delightful flavor.
  3. Perfect for Any Occasion: Whether it's a holiday, potluck, or a simple family dessert, this cake fits right in.
  4. Customize Your Way: Add your favorite toppings like whipped cream or ice cream for an extra treat!

Ingredients

Fresh Blueberries You need 2 cups of fresh blueberries. You can also use frozen blueberries that are thawed. These berries add sweet and tart flavors to the cake.

Lemon Cake Mix Grab one box of lemon cake mix. It should be 15.25 ounces. This mix gives the cake its fluffy texture and lemon taste.

Lemon-Lime Soda You will need 1 cup of lemon-lime soda. Brands like Sprite or 7-Up work well. This soda adds a light and fizzy touch to the cake.

Unsalted Butter Use ½ cup of melted unsalted butter. This butter adds richness and helps the cake stay moist.

Powdered Sugar Have 1 cup of powdered sugar on hand. This sugar will sweeten the lemon glaze and make it smooth.

Lemon Juice and Zest Get 2 tablespoons of lemon juice and the zest of 1 lemon. These will enhance the lemon flavor in both the cake and the glaze.

Salt All you need is a pinch of salt. This small amount helps bring out the flavors of the other ingredients.

Ingredient Image 1

Step-by-Step Instructions

Preheat the Oven

First, set your oven to 350°F (175°C). This heat will help the cake rise nicely.

Prep the Baking Dish

Grab a 9x13-inch baking dish. Grease it with non-stick spray or some butter. This helps the cake not stick.

Prepare the Blueberry Layer

Spread 2 cups of fresh blueberries evenly across the bottom. If you use frozen berries, make sure they are thawed first.

Make the Cake Batter

In a bowl, mix the lemon cake mix, 1 cup of lemon-lime soda, and a pinch of salt. Stir just until combined. Be careful not to over-mix.

Combine Ingredients

Pour the cake batter over the blueberries. Make sure all the berries are covered. This helps keep them juicy.

Drizzle with Butter

Take ½ cup of melted butter and drizzle it over the top of the cake mixture. This adds a rich flavor and helps with browning.

Baking Time

Place the dish in the oven. Bake for 30 to 35 minutes. Check with a toothpick; it should come out clean when the cake is done.

Prepare the Lemon Glaze

While the cake bakes, mix 1 cup of powdered sugar, 2 tablespoons of lemon juice, and the zest of 1 lemon in a bowl. Stir until smooth. This glaze adds a zesty finish.

Final Touches

After baking, let the cake cool for about 10 minutes. Drizzle the lemon glaze over the warm cake. Enjoy it warm or at room temperature! You can even add ice cream or whipped cream on top for extra fun.

Tips & Tricks

Choosing the Right Blueberries

When selecting blueberries, look for firm, plump, and deep blue berries. These give the best flavor. Fresh blueberries taste great, but you can also use frozen ones. Just thaw them before using. This keeps the cake moist and adds a nice burst of flavor.

How to Avoid a Dense Cake

To keep your cake light, mix the batter gently. Over-mixing can lead to a heavy texture. Combine the lemon cake mix and soda just until blended. It's okay if there are a few lumps. This helps the cake rise and stay fluffy.

Serving Suggestions

Serve this cake warm for the best taste. A scoop of vanilla ice cream on top makes it even better. You can also add whipped cream or fresh mint for a nice touch. This cake is perfect for parties or family gatherings.

Best Practices for Storage

Store leftover cake in an airtight container. Keep it in the fridge for up to three days. For longer storage, freeze pieces in plastic wrap. Thaw them in the fridge before serving. This way, you can enjoy the cake later without losing flavor.

Pro Tips

  1. Use Fresh Blueberries: Fresh blueberries will provide the best flavor and texture, but if you're in a pinch, thawed frozen blueberries work well too.
  2. Watch the Baking Time: Ovens vary, so start checking the cake at the 30-minute mark to prevent over-baking and ensure a moist texture.
  3. Experiment with Soda: Try different lemon-lime sodas or even flavored sparkling water for a unique twist on the cake's flavor profile.
  4. Serve with Ice Cream: This dump cake is delicious on its own, but a scoop of vanilla ice cream or whipped cream makes it even more delightful!

Variations

Substitutions for Cake Mix

You can swap the lemon cake mix for other flavors. A vanilla cake mix works well. If you want a fun twist, try a white cake mix. Both options bring a unique taste to your dump cake. This can change the whole dessert experience.

Adding Other Fruits

You can mix in different fruits for added flavor. Try raspberries or strawberries for a juicy kick. Peaches and cherries also pair nicely with lemon and blueberries. Just be sure not to add too much liquid. This keeps the cake from becoming soggy.

Vegan or Gluten-Free Options

For a vegan version, use a plant-based cake mix. Replace butter with coconut oil or vegan butter. You can also use almond milk instead of lemon-lime soda. If you need a gluten-free option, look for gluten-free cake mixes. These make it easy to enjoy this dessert without worry.

Storage Info

How to Store Leftovers

To keep your lemon blueberry dump cake fresh, let it cool first. Cover it well with plastic wrap or foil. Store it in the fridge for up to three days. This keeps the flavors strong and the cake moist.

Freezing Instructions

You can freeze this cake if you have extras. Cut the cake into squares. Wrap each piece in plastic wrap, then foil. Place the wrapped pieces in a freezer-safe bag. This way, they stay fresh for about three months. When you are ready to eat, just thaw in the fridge overnight.

Reheating Tips

To reheat your cake, use the microwave. Place a piece on a microwave-safe plate. Heat it for about 20-30 seconds. Check if it’s warm enough. If not, heat it a bit longer. You can also warm it in the oven at 350°F. Bake for about 10-15 minutes until it's hot. Enjoy it warm with some ice cream or whipped cream!

FAQs

What is a dump cake?

A dump cake is a simple dessert. You layer fruit and cake mix in a dish. You do not need to mix them much. This style of baking is quick and fun. It gives you a great treat with little work. You can use any fruit you like.

Can I use frozen blueberries?

Yes, you can use frozen blueberries. Just make sure to thaw them first. Pat them dry with a towel to remove excess water. This helps keep your cake from getting soggy. Frozen blueberries are a great option when fresh ones are not in season.

How do I know when the cake is done?

To check if the cake is done, insert a toothpick in the center. If it comes out clean, the cake is ready. The top should also be golden brown. You can also gently press the top; it should spring back.

Can I make this cake ahead of time?

Yes, you can make this cake ahead. Bake it and let it cool completely. Then, cover it with plastic wrap. Store it in the fridge for up to three days. You can also freeze it for up to a month. Just reheat before serving.

What are some serving ideas?

Serve this cake warm or at room temperature. Add a scoop of vanilla ice cream on top for extra joy. You can also drizzle extra lemon glaze for more flavor. Fresh whipped cream pairs well too. Enjoy it with friends or family!

In this article, we explored how to make a delicious blueberry dump cake. You learned about the key ingredients, like fresh blueberries and lemon cake mix. I shared step-by-step instructions to ensure success, along with tips for the perfect texture and storage. Finally, we discussed variations for dietary needs.

You can enjoy this easy recipe anytime. It’s fun to make and full of flavor. Happy baking!

Lemon Blueberry Bliss Dump Cake

Lemon Blueberry Bliss Dump Cake

A delightful and easy dump cake featuring fresh blueberries and a zesty lemon flavor.

15 min prep
35 min cook
8-10 servings
250 cal
Pin Recipe

Ingredients

Instructions

  1. 1

    Preheat your oven to 350°F (175°C). Grease a 9x13-inch baking dish with non-stick spray or butter.

  2. 2

    Spread the fresh blueberries evenly across the bottom of the prepared baking dish.

  3. 3

    In a separate bowl, combine the lemon cake mix, lemon-lime soda, and a pinch of salt. Stir gently until just combined; avoid over-mixing as it may result in a dense texture.

  4. 4

    Pour the cake batter over the blueberries, making sure to cover them completely.

  5. 5

    Drizzle the melted butter evenly over the top of the cake mixture.

  6. 6

    Bake in the preheated oven for 30-35 minutes, or until the cake is golden brown and a toothpick inserted in the center comes out clean.

  7. 7

    While the cake is baking, prepare the lemon glaze by mixing the powdered sugar, lemon juice, and lemon zest in a bowl until smooth.

  8. 8

    Once the dump cake is out of the oven, allow it to cool for about 10 minutes before drizzling the lemon glaze over the top.

  9. 9

    Serve warm or at room temperature, optionally with a scoop of vanilla ice cream or whipped cream.

Chef's Notes

Serve warm or at room temperature, optionally with vanilla ice cream or whipped cream.

Course: Dessert Cuisine: American
Evelina Fairweather

Evelina Fairweather

Culinary Writer

Evelina Fairweather crafts engaging culinary articles as a Culinary Writer for dailydishlab.