No-Bake Key Lime Pie Recipe (Zesty, Creamy & Refreshing)

Prep Time: 15 minutes | Cook Time: 0 minutes | Total Time: 4 hours 15 minutes (including chilling) | Servings: 8 | Calories: 340 kcal per serving

This no-bake key lime pie is the ultimate tropical treat for when you want a fancy dessert without any of the work. It features a buttery graham cracker crust filled with a silky, tart, and creamy lime filling. Unlike the baked version, this one is extra light and airy, almost like a lime-flavored cloud.

It is the perfect rescue dessert for hot summer days because you don’t even have to turn on the oven. The combination of sweet condensed milk and puckery lime juice creates a flavor that is bright, bold, and incredibly refreshing. It’s the kind of pie that disappears in minutes at a backyard BBQ.

Four hours and fifteen minutes from start to finish, with most of that time spent chilling in the fridge. A cool, citrusy classic that looks beautiful and tastes like a vacation on a plate.

Why You Will Love This Recipe

Key lime pie is a crowd favorite, and this no-bake version is especially great. Here is why you’ll be making it on repeat:

• No oven, no stress. You don’t have to worry about egg yolks curdling or the crust burning. Just mix, pour, and chill.
• The perfect balance. It hits that magical “sweet and sour” spot that makes your taste buds dance.
• Five-star texture. By using whipped cream, the filling stays fluffy and light instead of being heavy or dense.
• Super short ingredient list. You only need about six basic items to make this happen.
• Great for parties. You can make it a day in advance, leaving you free to enjoy your guests while the pie sets up in the fridge.

Ingredients

For the Crust:

• 1 ½ cups graham cracker crumbs (about 10–12 full sheets)
• 1/3 cup granulated sugar
• 6 tablespoons unsalted butter, melted

For the Key Lime Filling:

• 1 can (14 oz) sweetened condensed milk
• ½ cup sour cream or plain Greek yogurt
• ¾ cup Key lime juice (fresh or bottled)
• 1 tablespoon lime zest (plus more for garnish)
• 1 ½ cups heavy whipping cream, very cold
• ¼ cup powdered sugar

Equipment Needed

• 9-inch pie plate
• Large mixing bowl
• Medium mixing bowl
• Hand mixer or whisk
• Rubber spatula
• Zester or fine grater

Instructions

• Step 1: In a medium bowl, mix the graham cracker crumbs, sugar, and melted butter until it looks like wet sand.
• Step 2: Press the mixture firmly into the bottom and up the sides of your 9-inch pie plate. Put it in the freezer for 15 minutes to firm up while you make the filling.
• Step 3: In a large bowl, whisk together the sweetened condensed milk, sour cream, lime juice, and lime zest until the mixture is smooth and slightly thickened.
• Step 4: In a separate cold bowl, beat the heavy whipping cream and powdered sugar until stiff peaks form (this means the cream stands up straight when you lift the beaters).
• Step 5: Gently fold about half of the whipped cream into the lime mixture using a spatula. Be slow and gentle so you don’t lose the airiness!
• Step 6: Pour the filling into your chilled crust and smooth out the top.
• Step 7: Refrigerate for at least 4 hours, but overnight is even better for a perfect slice.
• Step 8: Just before serving, top with the remaining whipped cream and a sprinkle of extra lime zest.

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Substitutes & Swaps

• Key Limes: If you can’t find tiny Key limes, regular Persian limes (the ones at every grocery store) work perfectly fine!
• Crust: You can use a pre-made graham cracker crust from the store to save even more time.
• Sour Cream: If you want a bit more protein or a tangier taste, use full-fat plain Greek yogurt instead.
• Whipped Cream: In a pinch, you can use an 8 oz tub of whipped topping (like Cool Whip) instead of making your own whipped cream.

Variations

• Coconut Key Lime: Add ½ cup of toasted shredded coconut to the crust or sprinkle it on top for a tropical twist.
• Individual Jars: Instead of a pie plate, layer the crumbs and filling into small mason jars for cute individual servings.
• Margarita Pie: Add a tiny splash of tequila and a pinch of salt to the filling for an “adults-only” version.
• Chocolate Crust: Use crushed chocolate sandwich cookies (like Oreos) instead of graham crackers for a “black and white” lime pie.

Tips & Tricks

• Zest before you juice. It is much easier to grate the skin off a whole lime than a squeezed-out one!
• Pack the crust tight. Use the bottom of a measuring cup to press the crumbs into the pie plate. This keeps the crust from falling apart when you slice it.
• Cold is your friend. Make sure your heavy cream is straight from the fridge so it whips up nice and fluffy.
• Bottled juice is okay. Fresh Key limes are tiny and a pain to squeeze. High-quality bottled Key lime juice (like Nellie & Joe’s) is a perfectly acceptable shortcut.
• Patience pays off. Don’t try to slice it too early. The pie needs that chill time to become firm enough to hold its shape.

Nutrition Information (Per Serving)

Nutrient	Amount
Calories	340 kcal
Total Fat	21g
Saturated Fat	13g
Carbohydrates	36g
Fiber	1g
Sugars	28g
Protein	4g
Sodium	160mg

Frequently Asked Questions (FAQs)

What is the difference between Key limes and regular limes?

Key limes are much smaller, seedier, and have a stronger, more floral aroma. They are also a bit more tart. However, regular limes still make a delicious pie!

Why is my pie runny?

This usually happens if the filling didn’t chill long enough or if the whipped cream wasn’t beaten to stiff peaks. Make sure it gets at least 4 hours in the fridge.

Can I freeze this pie?

Yes! It actually makes a great frozen dessert. Just wrap it tightly. You can eat it straight from the freezer or let it thaw for 15 minutes before serving.

How long does it stay fresh?

You can keep this pie in the fridge for about 3 to 4 days. After that, the crust might start to get a little soft.

A Taste of the Tropics

This no-bake key lime pie is the perfect way to bring a little bit of sunshine to your dinner table. It’s simple, it’s zesty, and it’s a total crowd-pleaser that won’t leave you sweating in a hot kitchen.

Whether you’re celebrating a special occasion or just want a sweet treat after a long day, this pie is always a good idea.

Made this key lime pie? Tell me in the comments if you used fresh or bottled juice, and let me know if you added any fun toppings!