Easy Key Lime Pie Bars
Bright, tangy, and irresistibly sweet, these Easy Key Lime Pie Bars are the perfect treat for any citrus lover.
With a buttery crust and smooth lime filling, they come together quickly and taste like a slice of sunshine.
Whether you’re hosting a summer gathering or just craving something refreshing, this pie recipe won’t disappoint.

If you love the tart and tangy flavor of key lime pie but don’t have the time to make a full pie, then you’re in luck!
These sweet and creamy bars have a zesty lime flavor.
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What are Key Limes?
Key limes, also known as Mexican limes or West Indian limes, are a type of citrus fruit that is smaller and rounder than the more common Persian lime.
They are named after the Florida Keys, where they were first cultivated, but they are also grown in other parts of the world, including Mexico and Central America.
Key limes are known for their distinctive flavor, which is more tart and aromatic than the flavor of Persian limes.
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They are commonly used in cooking and baking, especially in desserts like key lime pie, and are also used to flavor drinks such as mojitos and margaritas.
Why You’ll Love This Recipe
Here’s why you’re going to love these Easy Key Lime Pie Bars!
- Simple and Convenient: Skip the hassle of making a full pie — these bars are easier to prepare and serve, making them perfect for casual gatherings or weeknight treats.
- Perfect Balance of Sweet and Tart: The combination of sweet and tangy flavors offers a refreshing taste that’s especially enjoyable during warmer months.
- Ideal for Spring and Summer: Their light and zesty flavor profile makes them a great dessert choice for spring and summer occasions.
- Crowd-Pleaser: These bars are sure to impress guests, making them a great option for potlucks, picnics, or family dinners.
- Kid-Friendly: The approachable flavors and easy-to-eat bar form make them a hit with kids and adults alike.
Easy Key Lime Pie Bars Ingredients
Prep time: Approximately 15 minutes
Cook time: 30 to 35 minutes
Chill time: At least 3 to 4 hours
Servings: About 12 to 16 bars

To make these easy key lime pie bars, you’ll need the following ingredients:
- Pillsbury Key Lime cake mix
- butter
- eggs
- powdered sugar
- lime juice
- cream cheese
- green food coloring
- whipped topping and maraschino cherries

Kitchen Tools You’ll Need
To prepare these Easy Key Lime Pie Bars, you’ll need the following kitchen tools:
- 8×8-inch square baking pan: for baking the bars
- Parchment paper: to line the pan for easy removal
- Mixing bowls: for preparing the crust and filling
- Measuring cups and spoons: for accurate ingredient measurements
- Whisk or electric hand mixer: to combine the filling ingredients smoothly
- Spatula: for spreading the crust and filling evenly
- Citrus zester: to zest the limes
- Citrus juicer: to extract fresh lime juice
- Cooling rack: to cool the bars before refrigeration
- Sharp knife: for slicing the bars after they’ve set
These tools will help you create delicious and refreshing Key Lime Pie Bars with ease.
How to Make Key Lime Bars
Step 1: Preheat oven to 350°.
Step 2: Spray a 9 X 13 pan with non stick coating spray. Set aside.
Step 3: In a medium mixing bowl, add the cake mix, stick of butter and one egg.
Make sure the butter is softened or the mix will be lumpy.
Mix until well incorporated.
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Step 4: Press the cake batter mixture into the 9 X 13 pan. This will be the crust for the pie bars.

Step 5: In a medium mixing bowl, add the powdered sugar and 3 Tablespoons of butter.
With an electric mixer on medium speed, add the lime juice and beat for one minute.
Step 6: Add the cream cheese and food coloring and beat on medium speed for an additional minute.
Step 7: Scoop out 1 cup of the icing to a small bowl and set aside.
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Step 8: Add 2 eggs to the remaining icing and beat on medium speed until light and fluffy.

Step 9: Pour on top of the crust and bake for 28-30 minutes.
Step 10: Allow bars to cool for 30 minutes before spreading the reserved cup of icing on top.
Step 11: Cut into squares and serve with whipped cream and a cherry (optional).

More Dessert Bar Recipes
Discover more delicious dessert bar recipes that are easy to make and perfect for sharing.
- Easy Lemon Bars
- Cranberry Bliss Bars
- Strawberry Cheesecake Bars
- Fresh Peach Crumb Bars
- Carrot Cake Cream Cheese Bars
- Magic Cookie Bars
- No Bake Dragon Fruit Cheesecake Bars
- Sopapilla Cheesecake Bars
- Easy No Bake Bars
More Key Lime Pie Inspired Recipes:
The Key West Key Lime Pie CookbookThe Flavors of the Florida Keys
Florida Keys Cookbook: Recipes & Foodways Of Paradise

Easy Key Lime Pie Bars
Rather than fussing with making a pie, try out these Easy Key Lime Pie Bars that has the right combination of sweet and tart.
Ingredients
- 1 box Pillsbury Key Lime cake mix
- 1 stick (1/2 cup) plus 3 Tablespoons butter - room temperature
- 3 eggs
- 3 cups powdered sugar
- 2 teaspoons lime juice
- 8 oz. cream cheese
- 1-2 drops green food coloring
- Garnish- whipped topping and maraschino cherries
Instructions
- Preheat oven to 350°.
- Spray a 9 X 13 pan with non stick coating spray. Set aside.
- In a medium mixing bowl, add the cake mix, stick of butter and one egg. (Make sure the butter is softened or the mix will be lumpy). Mix until well incorporated.
- Press the cake batter mixture into the 9 X 13 pan. This will be the crust for the pie bars.
- In a medium mixing bowl, add the powdered sugar and 3 Tablespoons of butter. With an electric mixer on medium speed, add the lime juice and beat for one minute.
- Add the cream cheese and food coloring and beat on medium speed for an additional minute.
- Scoop out 1 cup of the icing to a small bowl and set aside.
- Add 2 eggs to the remaining icing and beat on medium speed until light and fluffy.
- Pour on top of the crust and bake for 28-30 minutes.
- Allow bars to cool for 30 minutes before spreading the reserved cup of icing on top.
- Cut into squares and serve with whipped cream and a cherry (optional).
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Nutrition Information:
Yield: 12 Serving Size: 1Amount Per Serving: Calories: 256Total Fat: 13gSaturated Fat: 7gTrans Fat: 0gUnsaturated Fat: 5gCholesterol: 78mgSodium: 125mgCarbohydrates: 33gFiber: 0gSugar: 31gProtein: 3g
Nutrition information isn’t always accurate.
Don’t miss out on our other family friendly recipes!
I love key limes – the perfect little citrus treat!! Thanks for sharing on the What’s for Dinner link up and don’t forget to leave a comment at the party – Next week’s features that also leave a comment get pinned and tweeted!
Yummed and pinned, will look forward to trying! #whatsfordinner
Oh my, this looks so good.
These bars look SO tasty! Thanks so much for sharing your yummy recipe on the Monday Funday Party!
I was wondering about those!
Thanks- I’ll have to try!
Michelle
HI! These looks amazing! Thank you for linking up to last week’s Tasty Tuesday linky. I have pinned your recipe to the Tasty Tuesday Pinterest board. I hope you’ll join us again this week.
Yummy looking key lime pie bars. I didn’t know there was a mix. Thanks for sharing at the #InspirationSpotlight
Key lime pie anything is a favorite of mine. I’m always excited when I find something that is a variation from what I have already had. I can’t wait to try these bars. Thank you for sharing on Happiness is Homemade link party. Shared and pinned.
I love key lime! Thanks for sharing on the what’s for dinner link up.
These sound really good!! 🙂
Looks yummy! Thank you for sharing on Merry Monday! Hope to see ya next week!
Kim
Now these bars look too good to eat! Thanks so much for sharing with us at #overthemoon link party. I’ve shared on social media. Have a great week and see you next week.
Sue
Sizzling Towards 60 & Beyond
I just pinned your amazing Key Lime Pie Bars, can’t wait to try these! Hope you have a great 4th of July weekend and thanks so much for sharing with us at Full Plate Thursday!
Miz Helen
I can’t wait to try these. My husband will love them! Thanks for sharing at #HomeMattersParty
Congratulations!
Your recipe is featured on Full Plate Thursday this week. Thanks so much for sharing with us and enjoy your new Red Plate!
Miz Helen
They look so yummy! Thanks for sharing!!
Hugs,
Debbie