key lime pie recipe
The Best key lime pie recipe
What I love most about key lime pie is how balanced it is. The tartness of the lime juice cuts through the richness of the condensed milk and whipped cream, so it doesn’t feel too heavy. Plus, limes pack a good dose of vitamin C, and the graham cracker crust is a little lighter than a traditional pastry shell. It’s the kind of dessert that satisfies without leaving you in a sugar coma. My husband always says it’s the only pie he’ll eat more than one slice of, and honestly, I can’t blame him. It’s just that good.

Classic Key Lime Pie
A tangy and creamy Florida classic, this key lime pie features a zesty lime filling in a buttery graham cracker crust, topped with whipped cream. Perfect for warm weather or any time you crave a refreshing dessert.
🥘Ingredients
- 1 ½ cups graham cracker crumbs (about 20 crackers)
- ⅓ cup granulated sugar
- 6 tbsp unsalted butter, melted
- ¼ tsp salt
- 4 large egg yolks
- 1 (14 oz) can sweetened condensed milk
- ½ cup key lime juice (about 20-25 key limes or 3-4 regular limes)
- 1 tbsp lime zest
- 1 cup heavy whipping cream
- 2 tbsp powdered sugar
- ½ tsp vanilla extract
- Lime slices or zest for garnish (optional)
👨🍳Directions
-
1
Preheat your oven to 350°F (175°C). -
2
In a medium bowl, combine graham cracker crumbs, sugar, melted butter, and salt. Mix until evenly moistened. -
3
Press the crumb mixture firmly into the bottom and up the sides of a 9-inch pie dish. Use the back of a spoon or a measuring cup to compact it evenly. -
4
Bake the crust for 8-10 minutes, or until lightly golden and fragrant. Remove from the oven and let it cool slightly while you prepare the filling. -
5
In a large bowl, whisk the egg yolks until smooth. Add the sweetened condensed milk and whisk until fully combined. -
6
Stir in the key lime juice and lime zest, mixing until the filling is smooth and slightly thickened. -
7
Pour the filling into the pre-baked crust, spreading it evenly with a spatula. -
8
Bake for 12-15 minutes, or until the filling is set but still slightly jiggly in the center. Do not overbake. -
9
Remove the pie from the oven and let it cool to room temperature. Then, refrigerate for at least 4 hours (or overnight) to fully set. -
10
Before serving, prepare the topping: In a chilled bowl, whip the heavy cream, powdered sugar, and vanilla until stiff peaks form. Spread or pipe the whipped cream over the chilled pie. -
11
Garnish with lime slices or zest if desired. Slice and serve chilled.
🔧Equipment
- 9-inch pie dish
- Mixing bowls
- Whisk
- Measuring cups and spoons
- Electric mixer (or whisk for manual whipping)
- Rubber spatula
- Oven
📊Nutrition Facts (per serving)
📝Notes
Watch Video Of How Classic Key Lime Pie Works
❓ Frequently Asked Questions About Key Lime Pie
1. What is the key difference between key lime pie and regular lime pie?
Key lime pie is made with Key limes, which are smaller, more aromatic, and have a thinner rind than regular Persian limes. The juice is also more tart and floral, giving the pie its signature bright, tangy flavor. Regular lime pie often uses Persian lime juice, which is milder and less acidic. Additionally, traditional key lime pie has a graham cracker crust, while some lime pies may use a pastry crust.
2. Can I use bottled key lime juice instead of fresh?
While fresh Key lime juice is ideal for the best flavor, bottled Key lime juice (like Nellie & Joe’s or ReaLime) is a convenient and widely accepted substitute. Avoid generic “lime juice” from concentrate, as it lacks the authentic taste. If using bottled juice, check the label to ensure it’s 100% Key lime juice. For fresh juice, you’ll need about 20–25 Key limes to yield ½ cup.
3. Why did my key lime pie filling turn out runny?
A runny filling usually happens due to undercooking or incorrect ingredient ratios. Key lime pie relies on egg yolks to thicken the filling—if the mixture doesn’t reach 160°F (71°C), it won’t set properly. To fix this:
– Bake the pie until the center is just set (it should jiggle slightly but not be liquid).
– Chill the pie for at least 4 hours (preferably overnight) to allow it to firm up.
– Ensure you’re using the right ratio: 4 egg yolks per 14 oz can of sweetened condensed milk.
4. Do I have to bake the graham cracker crust before adding the filling?
Yes, pre-baking (or “blind baking”) the crust is highly recommended for a crisp, sturdy base. Without pre-baking, the crust can turn soggy from the wet filling. To pre-bake:
1. Press the graham cracker crust into the pie dish.
2. Bake at 350°F (175°C) for 8–10 minutes, then cool before adding the filling.
3. Some recipes call for brushing the crust with melted butter or an egg wash before baking to enhance crispness.
5. How long does key lime pie last, and can I freeze it?
– Refrigerated: Key lime pie lasts 3–4 days when stored in an airtight container. The crust may soften over time.
– Freezing: You can freeze key lime pie for up to 2 months. Wrap it tightly in plastic wrap and foil to prevent freezer burn. Thaw in the fridge overnight before serving. Note that the texture of the filling may become slightly grainy after freezing, so fresh is always best. Avoid freezing pies with meringue toppings, as they don’t hold up well.
