Can I make Key Lime Pie without eggs?

Yes! You can create an egg-free version by using the acid in the lime juice to set the sweetened condensed milk. Simply mix the condensed milk with lime juice and let it thicken naturally. The texture will be slightly different but still delicious, and this version doesn't require baking.

How do I know when my Key Lime Pie is properly set?

A properly set Key Lime Pie will have a filling that's firm around the edges but still slightly jiggly in the center when you gently shake the pan. After chilling for at least 4 hours, the pie should slice cleanly without the filling running, and you'll have that perfect creamy texture that makes this dessert so beloved.

What's the difference between key limes and regular limes in this recipe?

Key limes are smaller, more aromatic, and have a distinctive tart flavor with floral notes that regular Persian limes lack. While you can substitute regular lime juice, you'll need about ⅓ cup instead of ½ cup since Persian limes are less acidic. The authentic Key Lime Pie flavor comes specifically from those tiny yellow key limes, which is why many bakers insist on using only the real thing.

Key Lime Pie: 7 Secrets For Zesty, Perfect Results

Description

This Ultimate Classic Key Lime Pie is the perfect balance of bright citrus tang and creamy sweetness, all nestled inside a buttery graham cracker crust. Made with real key lime juice, sweetened condensed milk, and silky egg yolks, this timeless dessert delivers that unmistakable tropical flavor in every bite. Finished with a cloud of fresh whipped cream, it’s refreshing, elegant, and surprisingly easy to make, ideal for summer gatherings, holidays, or whenever you’re craving a slice of sunshine.

Ingredients

Scale

For the Graham Cracker Crust:

1½ cups graham cracker crumbs (about 12 whole crackers)
⅓ cup granulated sugar
6 tablespoons unsalted butter, melted
Pinch of salt

For the Key Lime Filling:

4 large egg yolks
1 (14-ounce) can sweetened condensed milk
½ cup fresh key lime juice (about 12–15 key limes)
1 tablespoon key lime zest
¼ teaspoon vanilla extract

For the Whipped Cream Topping:

1 cup heavy whipping cream
3 tablespoons powdered sugar
½ teaspoon vanilla extract

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Instructions

Prepare the Graham Cracker Crust

Preheat oven to 350°F (175°C).
In a medium bowl, mix graham cracker crumbs, sugar, salt, and melted butter until the mixture resembles wet sand.
Press firmly into the bottom and sides of a 9-inch pie pan, using a measuring cup to smooth and compact.
Bake for 10–12 minutes until lightly golden. Remove and let cool completely.

2. Make the Key Lime Filling

In a large bowl, whisk egg yolks until smooth.
Gradually whisk in sweetened condensed milk until fully combined.
Add key lime juice, zest, and vanilla extract, whisking until smooth and slightly thickened.
Pour filling into the cooled crust and smooth the top.

3. Bake and Chill

Bake for 12–15 minutes, until the center is just set with a slight jiggle.
Cool completely at room temperature, then refrigerate for at least 4 hours or overnight.

4. Whipped Cream Topping

Just before serving, whip heavy cream, powdered sugar, and vanilla until soft peaks form.
Spread or pipe over the chilled pie.

Notes

Key Lime Pie Secrets

Use real key limes when possible for authentic flavor; Persian limes work in a pinch.

Do not overbake a slight jiggle ensures a creamy texture.

Zest before juicing for easier handling and maximum aroma.

Strain the filling for an ultra-smooth, bakery-quality finish.

Chill thoroughly for clean slices and proper set.

Common Mistakes to Avoid

Using bottled lime juice (results in flat flavor)

Skipping the crust pre-bake (causes sogginess)

Cutting too soon before chilling

Overmixing, which can introduce air and cause cracks

Storage

Refrigerate covered for up to 4 days.

Freeze individual slices (without whipped cream) for up to 3 months. Thaw overnight in the fridge.

Add whipped cream fresh for best texture.

Variations & Dietary Swaps

Gluten-free: use gluten-free graham crackers or nut-based crust

Dairy-free: coconut condensed milk, vegan butter, and coconut whipped cream

Lower-calorie: nut crust with dates; light coconut milk + honey blend

Serving Ideas

Garnish with lime wheels, zest, or mint

Serve with fresh berries or tropical coulis

Pipe decorative whipped cream borders for special occasions

Prep Time: 25 minutes

Nutrition

Serving Size: 8-10 people
Calories: 385
Sugar: 45g
Sodium: 180mg
Fat: 18g
Saturated Fat: 12g
Carbohydrates: 52g
Protein: 7g
Cholesterol: 125mg