This delightful Mango Key Lime Tart is your go-to dessert for warm weather! With the sweet, juicy mango and the zesty kick of Key lime, every bite feels like a mini-vacation. It’s perfect for summer gatherings, BBQs, or just a weekend treat at home. The graham cracker crust adds a wonderful crunch, which complements the creamy filling beautifully. Plus, it’s surprisingly easy to whip up, so you’ll find yourself making it again and again. Imagine the vibrant colors and refreshing flavors that will steal the show at your next dinner party or family gathering. Trust me, you’ll want to savor this tart while basking in the sun with your loved ones. Let’s get started on making this sensational Mango Key Lime Tart!
Jump to:
- Why This Recipe Works
- Why You’ll Love This Mango Key Lime Tart
- Ingredients
- Preparing the Graham Cracker Crust
- Create the Crust Mixture
- Form the Tart Shell
- Bake the Crust
- Preparing the Mango Filling
- Make the Mango Puree
- Combine with Other Ingredients
- Bake the Tart
- Whipped Cream Topping
- Prepare the Whipped Cream
- Serving Suggestions
- Tips for Success
- Variations
- Storage Tips
- FAQs
- More Easy Desserts Recipes:
- 📖 Recipe Card
Why This Recipe Works
This Mango Key Lime Tart beautifully balances the sweetness of the ripe mango with the tartness of Key limes, creating a refreshing dessert that’s perfect for warm weather. The graham cracker crust adds a delightful crunch, while the creamy filling delivers a luscious texture. This unique combination not only highlights the fresh ingredients but also showcases a skillful blend of flavors that everyone will love. When you take that first bite, you’ll understand why this tart is a favorite among many.
Why You’ll Love This Mango Key Lime Tart
Whether you’re hosting a summer gathering or simply craving a zesty treat, this Mango Key Lime Tart is a showstopper. Its vibrant colors and tropical essence transport you to a sunny paradise, making it a delightful finish to any meal. Plus, it’s surprisingly easy to make, ensuring that you’ll spend more time enjoying your dessert and less time in the kitchen. Every slice will bring smiles and happiness, making it a memorable addition to your dessert repertoire.

Ingredients
- 10 honey graham crackers (20 squares), broken into pieces
- 2 tablespoons granulated sugar
- 5 tablespoons unsalted butter, melted
- 3 cups fresh mango, peeled and diced (about 2 mangoes)
- 1 (14 ounce) can sweetened condensed milk
- ½ teaspoon Key lime zest
- 3 tablespoons Key lime juice (from about 6 Key limes)
- 4 large egg yolks
- ¼ teaspoon salt
- 1 cup heavy cream
- 1 tablespoon confectioners’ sugar
- 1 teaspoon vanilla extract
Preparing the Graham Cracker Crust

Create the Crust Mixture
Start by preheating your oven to 350°F. In a food processor, blend the graham crackers with granulated sugar until they look crumbly. Then, drizzle in the melted butter while pulsing the mixture until it’s moistened throughout. The smell alone will make you eager to taste!
Form the Tart Shell
Next, transfer the crumb mixture into a 9-inch tart pan. Using your hands or the bottom of a glass, firmly press the crumbs against the bottom and sides. This step helps form a compact crust that holds everything together beautifully.
Bake the Crust
Bake the crust for about 10 to 12 minutes, or until it turns a lovely golden brown. After baking, allow it to cool completely on a baking rack while you prepare the filling. This cooling step is essential for keeping the crust firm and less crumbly.
Preparing the Mango Filling
Make the Mango Puree
In the now-empty food processor, pulse your diced mango until it’s smooth and creamy. To keep your filling silky, strain the puree through a coarse sieve into a large bowl. This way, you remove any fibers and achieve an ultra-smooth texture.
Combine with Other Ingredients
Now, add the sweetened condensed milk, Key lime zest, Key lime juice, egg yolks, and salt to the strained mango puree. Whisk everything together until it’s well combined. The mixture should look inviting and fresh, full of bright flavors.
Bake the Tart
Next, pour the mango filling into the cooled crust. Bake it for around 25 to 28 minutes, until the edges are set but the center remains slightly jiggly. It’s important not to overbake—let it cool on a rack for 1 hour before refrigerating for at least 2 hours, or overnight if you can wait! Chilling helps everything set perfectly.
Whipped Cream Topping
Prepare the Whipped Cream
In a stand mixer, combine heavy cream, confectioners’ sugar, and vanilla extract. Start at medium speed and gradually increase to high. Beat until stiff peaks form. This whipped cream adds a light touch that beautifully contrasts with the tart’s creaminess.
Serving Suggestions
Slice the Mango Key Lime Tart and serve it chilled, generously topped with that homemade whipped cream. For an extra pop of color and flavor, consider adding fresh berries or a simple sprig of mint. The presentation alone will impress your guests!
Tips for Success
- Ensure all ingredients are at room temperature for optimal mixing.
- Use fresh, ripe mangoes to maximize flavor; they truly make a difference.
- Allow the tart to chill thoroughly for a better texture and taste. The longer it sets, the more the flavors meld together.
Variations
Feel free to switch things up according to your taste! You can substitute mango with other tropical fruits like passion fruit or pineapple for a different twist. Adding a layer of coconut cream can also enhance that tropical vibe. If you’re looking for a gluten-free option, use gluten-free graham crackers.
Storage Tips
If you manage to have any leftovers, store them in an airtight container in the refrigerator for up to 3 days. Just keep in mind that the crust may become soft over time, so it’s best enjoyed promptly for that perfect texture.

FAQs
1. Can I use frozen mango for this recipe?
Yes! Just thaw and drain any excess liquid before using, and it’ll work just fine.
2. How can I tell if the tart is done baking?
You’ll want the edges to be set while the center is slightly jiggly. It’s a fine line, but you’ll get the hang of it!
3. Is there a non-dairy substitute for heavy cream?
Coconut cream can serve as a tasty non-dairy alternative, keeping the tropical theme alive.
4. Can I make the tart ahead of time?
Absolutely! It’s a perfect make-ahead dessert. Give it a day in the fridge to chill and set.
5. How can I serve leftovers?
Enjoy the tart chilled, preferably with some fresh fruit on top for a refreshing touch to each bite!
This Mango Key Lime Tart is not only a feast for the eyes but also a tantalizing treat that embodies the flavors of summer. With its unique fusion of sweet and tart, this dessert promises to impress at any gathering. The ease of preparation allows you to focus on the joy of sharing this vibrant dessert with family and friends. Whether it’s a warm day or a special occasion, this Mango Key Lime Tart is sure to delight palates and create lasting memories.
More Easy Desserts Recipes:
- Rocky Road Cake
- Frozen Chocolate Covered Banana Split Bites
- Toasted Coconut Pineapple Cake with White Chocolate Frosting
- Strawberry Lasagna
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Mango Key Lime Tart
This Mango Key Lime Tart is a vibrant dessert that combines sweet mango with tangy Key lime. Its creamy filling and crunchy graham cracker crust are a delightful treat for any occasion.
- Total Time: 1 hour 10 minutes
- Yield: 8 servings 1x
Ingredients
- 10 honey graham crackers (20 squares), broken into pieces
- 2 tablespoons granulated sugar
- 5 tablespoons unsalted butter, melted
- 3 cups fresh mango, peeled and diced (about 2 mangoes)
- 1 (14 ounce) can sweetened condensed milk
- ½ teaspoon Key lime zest
- 3 tablespoons Key lime juice (from about 6 Key limes)
- 4 large egg yolks
- ¼ teaspoon salt
- 1 cup heavy cream
- 1 tablespoon confectioners’ sugar
- 1 teaspoon vanilla extract
Instructions
- Preheat oven to 350°F.
- Blend graham crackers and sugar in a food processor and mix in melted butter.
- Press crumb mixture into a tart pan and bake for 10-12 minutes until golden.
- Cool the crust completely before adding filling.
- Pulse diced mango in a food processor until smooth, then strain.
- Whisk together strained mango puree, sweetened condensed milk, Key lime zest, juice, egg yolks, and salt.
- Pour mixture into cooled crust and bake for 25-28 minutes until edges set.
- Cool for 1 hour, then refrigerate for at least 2 hours.
- Whip heavy cream with confectioners' sugar and vanilla until stiff peaks form.
- Serve tart chilled with whipped cream and optional fresh berries or mint.
Notes
Use fresh, ripe mangoes for the best flavor.
Chill thoroughly for optimal texture and taste.
Can substitute mango with other tropical fruits for variations.
- Prep Time: 30 minutes
- Cook Time: 40 minutes
- Category: Dessert
- Method: Baking
- Cuisine: Tropical
Nutrition
- Serving Size: 1 slice
- Calories: 320
- Sugar: 18
- Sodium: 150
- Fat: 18
- Saturated Fat: 10
- Unsaturated Fat: 5
- Trans Fat: 0
- Carbohydrates: 38
- Fiber: 1
- Protein: 4
- Cholesterol: 80