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Key Lime Dump Cake (The BEST!)

May 10, 2016 By Heidi 11 Comments

I may get paid for ads or purchases made through links in this post.

This easy Key Lime Dump Cake Recipe will make you an instant kitchen superstar!  It’s so simple to make, and always gets rave reviews!  Plus with just 10 minutes of prep, it’s such a cinch to make!

Be sure to also give this authentic Key Lime Pie and lip-smackin Lime Sherbet Punch a try, too!

Key Lime Dump Cake Recipe with Cake Mix

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Key Lime Dump Cake Recipe

Get your Key Lime fill tonight with this sweet and tangy Key Lime Cake Mix Dump Cake Recipe!

Betty writes: “Yum! So easy and so delicious!”

Key Lime Pie is amazing, but guess what… our favorite flavor is also incredible in this 9×13 Key Lime Dump Cake!

Just a few simple ingredients, and you’ve got a ridiculously delicious dessert your family will LOVE!

It’s the perfect combination of flavors… a kiss of sweet matched with a bite of lime tanginess, topped with a buttery crumble topping!

Simply dish it up like a Key Lime Cobbler, and you’ve got a fabulous dessert!

Could it get any better than this?  Well actually, oh yes, yes it can!

Then you can add some whip cream or a scoop of vanilla ice cream (or both) to send it over the top!  Yes, please!

The best part is… this creamy delicious Key Lime Cake Mix Dump Cake is always in season.

When you can’t make it to the Florida Keys, why not bring them to you?

So are you ready to enjoy your new favorite sweet and tangy treat?

Here’s what you’ll need to get started…

Related:  How To Cut Your Grocery Bill In Half (35 easy tips)

Cake Mix Dump Cake Recipe

Key Lime Dump Cake Ingredients

It takes just a few simple ingredients to make the BEST Key Lime Dump Cake!

Seriously, you won’t believe how simple this key lime dessert is to make!

Here’s what you’ll need before you can get baking your irresistible tangy treat…

It all starts with a box of Vanilla Cake Mix.

Then you’ll also need Butter, Key Lime Juice, Sweetened Condensed Milk, Sour Cream, Limes, and Salt.

The flavors come together beautifully to make THE dessert you’ll want on repeat!

See… I told you it was so EASY!

Key Lime Cake Mix Dump Cake Recipe

How to Make Key Lime Dump Cake

It’s actually SO simple to make this sweet and tart treat!

Here’s what you’ll do…

1. Spray the inside of your 9×13 baking dish with non-stick cooking spray.

2. Mix the Key Lime Juice, Sweetened Condensed Milk, Sour Cream, Lime Zest & Salt in large bowl.

3. Evenly spread out the key lime pie filling in the bottom of your baking dish.

4. Combine the cake mix with butter to make a buttery crumble topping, and sprinkle it over the key lime pie filling.

5. Then bake as directed, and until the sides are hot and bubbly.

That’s it.  So easy!

Scroll down for the printable recipe card with detailed, step-by-step instructions.

Easy Cake Mix Dump Cake Recipe Key Lime

How to Serve Key Lime Dump Cake

This delicious dessert can be served warm, straight from your baking dish!

Simply spoon out portions into small bowls, and top with Whip Cream, Vanilla Ice Cream or Toasted Coconut.

Then… devour & ENJOY!

How to Store Key Lime Dump Cake

After baking, store leftovers covered in the refrigerator.

Crockpot Lemon Dump Cake Recipe

Citrus Dump Cake Variations

Want to change things up?  Go for it!

There are so many delicious citrus dump cake variations you can make.  Here are a few of my favorites…

  • Crockpot Lemon Dump Cake (made with lemon cake mix and lemon pie filling)
  • Blueberry Lemon Dump Cake (made with lemon cake mix and blueberry pie filling)
  • Lemon Blueberry Cobbler (made with lemon cake mix, blueberry pie filling and cream cheese)
  • Strawberry Lemonade Dump Cake (made with lemon cake mix and strawberry pie filling)

The options really are endless!

Strawberry Lemonade Dump Cake Recipe

Key Lime Dump Cake Reviews

Here’s what your frugal friends are saying about this easy Key Lime Cake Mix Dump Cake…

One reader writes: “Love the sweet and tart.”

Michelle writes: “Very good and rich!”

Karen writes: “Made this last Sunday and it was so good.”

Karla writes: “This was a hit at my family dinner!”

Iris writes: “This is an easy and quick to make recipe. It tastes very good.”

Rena writes: “Yummy… and so simple”

Marcia writes: “Made this for my Mother’s birthday, and it was a big hit.  Love how easy it was to make.”

Leanne writes: “Delicious”

Denise writes: “I chilled overnight & served cold.  The zest brightened the dish.”

Sarah writes: “So delicious and super simple!”

Kim writes: “Yummy yummy”

Raynette writes: “I crushed up some pretzels and mixed them in with the cake mix crumble.  Husband approved.”

Rebecca writes: “My favorite”

Betty writes: “Yum! So easy and so delicious!”

Kelly writes: “I have celiac disease and have made with yellow and white Gluten-Free cake mix.”

Key Lime Dump Cake Recipe with Cake Mix

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Key Lime Dump Cake Recipe with Cake Mix
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Key Lime Dump Cake Recipe

This easy Key Lime Cake Mix Dump Cake Recipe will make you an instant kitchen superstar!  It's so simple to make, and always gets rave reviews!
Prep Time10 minutes mins
Cook Time20 minutes mins
Cooling Time20 minutes mins
Total Time50 minutes mins
Servings: 8
Author: The Frugal Girls

Ingredients

  • 13.25 oz. Betty Crocker Vanilla Cake Mix
  • 8 tbsp. Butter, melted (1/2 cup or 1 stick)
  • 3/4 cup Key Lime Juice
  • 28 oz. Sweetened Condensed Milk (two 14 oz. cans)
  • 2/3 cup Sour Cream
  • 1 tbsp. Grated Lime Zest
  • 1/4 tsp. Salt

Instructions

  • Preheat oven to 350 degrees.
  • Spray inside of glass or ceramic 9×13 Casserole Dish with non-stick cooking spray
  • In large mixing bowl, add Key Lime Juice, Sweetened Condensed Milk, Sour Cream, Lime Zest & Salt, and stir until well combined.
  • Transfer Key Lime mixture into bottom of baking dish, and spread out evenly.
  • In medium mixing bowl, combine dry Cake Mix and melted Butter, and stir until crumbly. (Break up any large chunks into small crumbles with spoon.)
  • Sprinkle cake/butter crumble mixture over key lime mixture in baking dish, and spread out evenly.
  • Bake for 20 minutes, then allow to cool for at least 20 more minutes on the counter before serving.
  • Serve warm with... or transfer to refrigerator and serve chilled the next day.  
  • Optional: Serve with a scoop of Vanilla Ice Cream, or top with Whip Cream and Toasted Coconut. ENJOY!
  • Leftovers can be stored covered in the refrigerator.

Notes

Follow The Frugal Girls on Pinterest for more Easy Recipes!
Course: Dessert
Cuisine: American

More Lime Recipe Inspiration

Wasn’t that SO easy?

Desserts don’t need to be complicated to be delicious!

Now are you in the mood for more sensational lime treats?  I’ve got you covered!

From pie to party punch, there’s something lip-smacking delicious for everyone!

You’ll definitely want to try these, too…

Easy Key Lime Pie Recipe

It’s time to take your tastebuds on a little tropical trip with this Easy Key Lime Pie Recipe!

Lime Sherbet Party Punch

With just 3 ingredients, this Lime Punch will be one of the EASIEST and tastiest party punches you’ll ever make!

Strawberry Limeade Recipe

Did you know it takes just 4 ingredients to make an AMAZING Strawberry Limeade?  This big batch recipe will be the hit of your next party!

More Dump Cake and Dessert Inspiration

Craving more easy Dump Cake Recipes and Delicious Dessert Recipes?

Dessert doesn’t need to be complicated!  Get inspired with these yummy ideas below…

Strawberry Cheesecake Dump Cake Recipe

Your favorite berry just got a little cheesecake excitement as a best buddy in this delicious dump cake!

Strawberry Dump Cake Recipe

Whether or not you have a secret obsession to Strawberries, you’re about to fall madly in love with this Strawberry Dump Cake Recipe!  It’s ridiculously simple and super delicious!  Who said desserts has to be complicated?

Crockpot Lemon Dump Cake Recipe

Your tastebuds will squeal with excitement for this easy lip-smackin’ Crockpot Lemon Dump Cake Recipe!  So what are we all waiting for… let’s get this Lemon Dump Cake in the Crockpot!!  I can almost taste it now!

Easy Black Forest Dump Cake Recipe

It’s time to meet your new favorite desert!  This Black Forest Dump Cake Recipe is just 3 ingredients and 110% delicious!

Easy Black Forest Dump Cake Recipe at TheFrugalGirls.com

Pineapple Cherry Dump Cake Recipe

Say hello to Summer with this delicious tropical Pineapple Cherry Dump Cake Recipe!

Easy Raspberry Dump Cake Recipe

This Easy Raspberry Dump Cake will remind you of summer raspberry dreams!

Crockpot Blackberry Dump Cake Recipe

This Crockpot Blackberry Dump Cake Recipe is simple, delicious and crazy irresistible!

Crockpot Blackberry Dump Cake Recipe

Crock Pot Lemon Blueberry Dump Cake Recipe

The delicious blend of Lemon and Blueberry is lip-smackin’ good and this dump cake truly couldn’t get much easier!  Go grab your Crock Pot and let’s get started!

Pumpkin Spice Dump Cake Recipe

Satisfy those long repressed cravings for pumpkin with this delicious Pumpkin Spice Dump Cake Recipe!

Easy Pumpkin Spice Dump Cake Recipe

Apple Caramel Dump Cake with 4 Ingredients

Get ready for an outrageously scrumptious dessert when you make this easy Apple Caramel Dump Cake with 4 Ingredients!

Apple Dump Cake Recipe with Caramel

Peaches and Cream Cobbler Recipe

This easy Peaches and Cream Cobbler Recipe serves up sweet peach happiness anytime you want.

Peaches and Cream Cobbler Easy

30 Dump Cake Recipes using Cake Mix

I’ve got a whole list of seriously easy dump cake recipes to share with you!  They’re simple to make and SO delicious!

White Chocolate Blueberry Scones

Clever Food and Grocery Tips

How To Cut Your Grocery Bill In Half (35 Brilliant Money Saving Tips)

You won’t believe how much money you’ll save with these little known tips and tricks to slash your grocery bill!

So have you tried this Key Lime Dump Cake recipe yet?

Leave a comment and share…

Filed Under: Dessert Recipes, Recipes Tagged With: Cakes, Fruits

Comments

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    • Kennedy Poth says

      August 26, 2017 at 7:33 pm

      Would this work with a yellow cake mix instead?

      Reply
      • Heidi says

        August 27, 2017 at 12:14 pm

        Hi Kennedy ~ yes… you could substitute a yellow cake mix. Enjoy! 🙂

        Reply
    • Rev Clifford Cheney says

      March 4, 2017 at 3:38 am

      for a old 69 yr old vet these are great………..you can fill them with darn near anything, fresh and from a can. I am disabled and this is so much easier then the long drawn out way to make a cake……………thank you…

      Reply
      • Heidi says

        March 4, 2017 at 8:38 am

        Aww ~ you’re very welcome! Dump cakes are definitely some of my favorite desserts, too! So easy and so many flavor combinations! 🙂

        Reply
    • Cathy in WV says

      May 25, 2016 at 7:01 am

      How do you serve the cake? Do you turn it out on a plate and cut it or do you spoon it out like you would a cobbler? Thanks!

      Reply
      • Heidi says

        May 25, 2016 at 9:13 am

        Hi Cathy ~ you’ll just spoon it out with a large spoon… just like a cobbler. 🙂

        Reply
        • Cathy in WV says

          May 25, 2016 at 1:48 pm

          Thank you! I can’t wait to try this! 🙂

          Reply
    • Mae says

      May 24, 2016 at 1:01 pm

      Do you prepare the cake mix according to the box? or just the dry mix and butter?

      Reply
      • Heidi says

        May 24, 2016 at 1:03 pm

        Hi Mae ~ no… you’ll just use the dry mix and butter. Hope that helps!

        Reply
    • Brenda says

      May 10, 2016 at 7:54 pm

      I never knew you could buy key lime pie filling. We like the yogurt, so we’d probably like this too. Thanks for sharing.

      Reply
      • Heidi says

        May 14, 2016 at 2:57 pm

        You’re very welcome, Brenda! You’ll find it on the baking aisle near the other pie fillings. It is SO delicious… just like the yogurt. 😉 ENJOY!

        Reply

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    About Heidi Picture
    Hi, I'm Heidi... I'm so glad you're here! I'm the Frugal Girl living here in sunny AZ with my hubby, and love sharing Easy Recipes & Frugal Living Tips!
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