If you love bright citrus desserts, this 7-Ingredient Key Lime Pie is a must-try recipe. With its creamy filling, buttery graham cracker crust, and refreshing lime flavor, this classic dessert is perfect for warm weather, holidays, or anytime you want a simple yet impressive treat.
Key lime pie is known for its distinctive tangy flavor that comes from fresh lime juice combined with sweetened condensed milk. The mixture creates a smooth, creamy filling that sets beautifully when baked. This recipe keeps things simple with just a handful of ingredients, making it easy enough for beginner bakers while still delivering bakery-quality results.
One of the highlights of this recipe is the graham cracker macadamia crust. The combination of crushed graham crackers, roasted macadamia nuts, butter, and sugar creates a crust that is both crunchy and slightly nutty. The crust adds texture and flavor that perfectly complements the creamy lime filling.
Another reason this dessert is so popular is its balance of flavors. The sweetness from the condensed milk blends perfectly with the tart lime juice, creating a refreshing contrast that isn’t overly sweet. Each bite delivers a bright citrus taste along with the richness of the creamy filling.
Key lime pie also happens to be one of the easiest classic pies to make. Unlike many traditional pies, it doesn’t require complicated techniques or long preparation times. The filling comes together in minutes and only needs a short baking time before chilling in the refrigerator.
Because it needs time to chill and set, key lime pie is also a great make-ahead dessert. You can prepare it hours or even days in advance, making it ideal for dinner parties, gatherings, and holidays.
Whether you top it with whipped cream, lime slices, or toasted meringue, this simple key lime pie recipe is guaranteed to impress anyone who tries it.
table of contents
Recipe Overview
Prep Time: 20 minutes
Cook Time: 30 minutes
Total Time: 3 hours 35 minutes (includes chilling)
Yield: 10–12 servings
Course: Dessert
Cuisine: American
Ingredients
Graham Cracker Macadamia Crust
- 11 full sheet graham crackers
- ½ cup roasted salted macadamia nuts
- 2 tablespoons granulated sugar
- 5 tablespoons unsalted butter, melted
Filling
- 28 oz sweetened condensed milk (two 14-oz cans)
- 1 cup key lime juice
- 4 large egg yolks
- 1 teaspoon key lime zest
Optional Garnish
- whipped cream
- lime slices
- lime zest
- macadamia nuts
- meringue topping
Instructions
1. Preheat the oven
Preheat your oven to 350°F (177°C).
2. Prepare the crust
Place graham crackers and macadamia nuts in a food processor.
Pulse until they form coarse crumbs.
Transfer the crumbs to a bowl and mix with sugar.
Add melted butter and stir until the mixture becomes thick and sandy.
Press the mixture firmly into a 9-inch pie dish, covering the bottom and sides.
3. Pre-bake the crust
Bake the crust for 8 minutes.
Remove it from the oven and allow it to cool slightly while preparing the filling.
Leave the oven on.
4. Make the filling
In a mixing bowl whisk together:
- sweetened condensed milk
- lime juice
- egg yolks
Whisk until smooth.
Add the lime zest and mix again.
5. Fill the pie crust
Pour the lime filling into the warm crust.
Spread evenly using a spatula.
6. Bake the pie
Bake for 18–20 minutes.
The center should still have a slight jiggle but mostly be set.
Remove from the oven.
7. Cool and chill
Allow the pie to cool completely at room temperature.
Then cover and refrigerate for at least 1 hour before slicing.
8. Garnish and serve
Before serving, decorate with:
- whipped cream
- lime slices
- extra zest
Slice and enjoy!
Why This Key Lime Pie Recipe Works
This recipe is popular because it uses a classic key lime pie technique that produces a creamy, smooth filling without complicated steps. The acidity of lime juice reacts with the condensed milk and egg yolks, helping the pie set while baking.
The result is a rich, silky texture that slices beautifully after chilling.
Another reason this recipe works so well is the crust. The addition of macadamia nuts adds extra flavor and crunch, making it slightly different from traditional graham cracker crusts.
Tips for the Best Key Lime Pie
Use fresh lime juice when possible
Fresh juice gives the best flavor.
Do not overbake
The pie should still jiggle slightly in the center.
Chill completely before slicing
This helps the filling set properly.
Add toppings just before serving
This keeps the pie looking fresh.
Storage Tips
Store leftover pie in the refrigerator.
- Refrigerator: up to 1 week
You can also freeze the pie for up to 3 months.
Thaw overnight in the refrigerator before serving.
FAQs
What is the difference between key limes and regular limes?
Key limes are smaller and more aromatic, with a stronger citrus flavor.
Can I use bottled lime juice?
Yes. Store-bought key lime juice works well for this recipe.
Can I make this pie ahead of time?
Yes. It can be made up to 3 days in advance.
Can I make this pie without nuts?
Yes. Simply use a traditional graham cracker crust
Can I make this pie without nuts?
Yes. Simply use a traditional graham cracker crust.
Disclaimer
This recipe is for informational purposes only. Nutritional values may vary depending on ingredients used and portion sizes.
7 Ingredient Key Lime Pie
Ingredients
Equipment
Method
- Preheat the oven to 350°F (175°C).
- Place graham crackers and macadamia nuts in a food processor and pulse until fine crumbs form.
- Mix the crumbs with sugar and melted butter until evenly combined.
- Press the mixture firmly into a pie dish to form the crust.
- Bake the crust for about 8 minutes, then remove and allow it to cool slightly.
- In a bowl, whisk together sweetened condensed milk, key lime juice, and egg yolks until smooth.
- Pour the filling into the prepared crust.
- Bake for 18–20 minutes until the filling is set.
- Allow the pie to cool, then refrigerate for at least 3 hours before serving.
Nutrition
Notes
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Let us know how it was!Conclusion
This 7-Ingredient Key Lime Pie is proof that simple ingredients can create an extraordinary dessert. With its refreshing citrus flavor, creamy filling, and crunchy graham cracker crust, it’s a classic recipe that never goes out of style. Whether you serve it at summer gatherings, holidays, or family dinners, this pie is guaranteed to be a crowd favorite. Once you try this easy homemade version, it may quickly become one of your favorite desserts.