Oh my gosh, you have to try this no-bake key lime pie! It’s my go-to dessert when I want something refreshingly tart yet ridiculously easy to make. I first fell in love with this recipe during a sweltering summer when turning on the oven felt like torture. The bright lime flavor cuts through the richness perfectly, and that creamy filling? Absolute heaven.
What makes this version special is how it balances simplicity with incredible taste. No fancy techniques here – just mix, chill, and devour. The graham cracker crust gives that satisfying crunch, while the filling stays luxuriously smooth without any baking drama. Trust me, after one bite of this tangy-sweet perfection, you’ll understand why it’s become my signature summer dessert.

Best part? You probably have most ingredients in your pantry right now. So let’s whip up this no-bake wonder together – your future self will thank you when that first cool, citrusy bite hits your tongue!
Why You’ll Love This No-Bake Key Lime Pie
This pie is everything you want in a dessert – and more! Here’s why it’s become my summer staple:
- No oven needed: Perfect for hot days when baking sounds miserable
- 5-minute active prep: Seriously – mix, pour, chill, done!
- Creamy dreamy texture: Silky smooth filling that melts in your mouth
- Bright, tangy flavor: That perfect sweet-tart balance that makes you pucker happily
- Foolproof: Even kitchen newbies can’t mess this one up
I’ve served this at countless potlucks, and every single time someone asks for the recipe. That’s how good it is!
Ingredients for No-Bake Key Lime Pie
Gather these simple ingredients for pie magic:
- 1 1/2 cups graham cracker crumbs – about 12 full sheets, crushed (I use a zip-top bag and rolling pin for therapy!)
- 1/3 cup granulated sugar – the sweet balance to our tart lime
- 6 tbsp melted butter – unsalted, please! This glues our crust together
- 2 (14 oz) cans sweetened condensed milk – the creamy backbone of our filling
- 3/4 cup key lime juice – fresh squeezed if you can find those tiny limes (about 20-25 key limes)
- 1 tbsp grated lime zest – use a microplane for fluffy zest that won’t bite
- 1 cup heavy whipping cream – cold straight from the fridge for best peaks
- 2 tbsp powdered sugar – just enough to sweeten our cloud-like topping
Pro tip: Measure your graham crumbs by packing them lightly into the cup – you want that perfect crumbly texture!
How to Make No-Bake Key Lime Pie
Okay, let’s dive into the magic! This pie comes together in just a few simple steps – I’ll walk you through each one so you get perfect results every time. The key is taking your time with each layer and not rushing the chilling (I know, the waiting is the hardest part!).
Preparing the Graham Cracker Crust
First, grab that bowl of graham cracker crumbs. Mix in the sugar, then drizzle the melted butter over everything. Stir until it looks like wet sand – you’ll know it’s ready when you can squeeze a handful and it holds its shape. Now press this firmly into your pie dish, making sure to get it even on the bottom and up the sides. Pop it in the fridge for 30 minutes to set – this keeps your crust from crumbling later!

Making the Key Lime Filling
While the crust chills, let’s make that dreamy filling. Whisk together the sweetened condensed milk, lime juice, and zest until completely smooth. You’ll see it thicken slightly as you mix – that’s exactly what we want! Pour this creamy goodness into your chilled crust, smoothing the top with a spatula. The filling should be pourable but not runny – if it seems too thick, just whisk in another teaspoon of lime juice.
Chilling and Finishing the Pie
Now comes the hard part – waiting! Cover your pie and refrigerate for at least 4 hours (overnight is even better). Right before serving, whip the heavy cream and powdered sugar until stiff peaks form. Spread this fluffy cloud over your set pie – I like leaving some swirls for a rustic look. Add lime slices or zest on top for that gorgeous finishing touch. Pro tip: Run your knife under hot water before slicing for perfect clean cuts!

Tips for the Perfect No-Bake Key Lime Pie
After making this pie more times than I can count, here are my can’t-live-without secrets for the absolute best results every time:
- Fresh is best: Squeeze those key limes yourself! Bottled juice just doesn’t give the same bright zing (but in a pinch, Nellie’s brand works okay).
- Chill out: Don’t skimp on refrigeration time – that 4-hour minimum makes all the difference for a sliceable pie.
- Press it right: When making the crust, really pack those crumbs in tight with the back of a measuring cup – loose crust = crumbly disaster!
- Easy does it: Overwhipping the cream topping turns it grainy – stop when you get those perfect soft peaks.
- Zest wisely: Only grate the green part of limes – the white pith underneath tastes bitter.
Oh, and one more thing – always make two pies. Because one disappears way too fast!
Ingredient Substitutions and Notes
Don’t stress if you can’t find every ingredient – this pie is super flexible! Can’t get key limes? Regular limes work nearly as well (use 1/2 cup juice instead). For a dairy-free version, swap the butter for melted coconut oil in the crust and use coconut cream instead of whipped cream topping. No graham crackers? Crushed vanilla wafers or shortbread cookies make a delicious crust too.
Just remember: The fresher your lime juice, the better the flavor. And if you’re using bottled lime juice, look for pure juice without any added sweeteners or preservatives. Little adjustments won’t hurt this forgiving recipe one bit!
Serving and Storing No-Bake Key Lime Pie
This pie deserves a little flair when serving! I love topping slices with thin lime wheels and a sprinkle of fresh zest – that pop of green makes it look so fancy. For extra pizzazz, add a dollop of whipped cream and a mint leaf. Always use a hot, dry knife (wiped clean between cuts) for picture-perfect slices.
Store any leftovers (ha!) covered in the fridge for up to 4 days. The crust might soften slightly, but the flavor actually improves overnight. You can freeze it too – just wrap tightly in plastic, then foil, and it’ll keep for 2 months. Thaw in the fridge before serving.
No-Bake Key Lime Pie Nutritional Information
Okay, let’s be real – we’re not eating pie for its health benefits! But for those curious, here’s the nutritional breakdown per slice (based on 8 servings). Remember, these are estimates – your exact numbers might vary slightly depending on brands and exact measurements.
- Calories: 420
- Fat: 22g (13g saturated)
- Carbohydrates: 52g
- Sugar: 45g
- Protein: 7g
Pro tip: If you’re watching sugar, you can reduce the crust sugar by half – the filling’s sweetness carries the whole pie beautifully!
Frequently Asked Questions
I get asked about this no-bake key lime pie all the time – here are the answers to the most common questions that pop up:
Can I use bottled lime juice instead of fresh?
Yes, in a pinch! But fresh juice gives that bright, vibrant flavor we love. If using bottled, look for 100% key lime juice without additives – Nellie’s brand works well. Just know the flavor won’t be quite as punchy.
How long does this pie keep in the fridge?
It stays delicious for 3-4 days when covered tightly. The crust softens slightly over time, but the flavor actually improves! For best texture, eat within 2 days.
Can I freeze no-bake key lime pie?
Absolutely! Freeze without the whipped cream topping for up to 2 months. Thaw overnight in the fridge, then add fresh whipped cream before serving. The texture might be slightly softer after freezing.
Why is my filling not setting?
Did you chill it long enough? It needs at least 4 hours – overnight is better. Also check that you used the full amount of lime juice (the acid helps it set) and sweetened condensed milk (not evaporated milk!).
Can I make this pie ahead?
Perfect for prepping ahead! The crust can be made 2 days in advance. Add filling 1 day before serving, then top with whipped cream right before presenting. Easy peasy!
Share Your No-Bake Key Lime Pie Experience
I’d love to hear how your pie turns out! Leave a comment below with your favorite twist, share a photo of your masterpiece, or tell me who you’re making it for. Nothing makes me happier than hearing about your kitchen adventures!


5-Minute No-Bake Key Lime Pie – Effortlessly Delicious
- Total Time: 4 hours 20 minutes
- Yield: 8 servings 1x
- Diet: Vegetarian
Description
A refreshing and easy-to-make no-bake key lime pie with a creamy filling and a crunchy graham cracker crust.
Ingredients
- 1 1/2 cups graham cracker crumbs
- 1/3 cup granulated sugar
- 6 tbsp melted butter
- 2 (14 oz) cans sweetened condensed milk
- 3/4 cup key lime juice
- 1 tbsp grated lime zest
- 1 cup heavy whipping cream
- 2 tbsp powdered sugar
Instructions
- Mix graham cracker crumbs, sugar, and melted butter in a bowl.
- Press the mixture into a pie dish to form the crust.
- Refrigerate the crust for 30 minutes to set.
- Whisk sweetened condensed milk, key lime juice, and lime zest in a bowl until smooth.
- Pour the filling into the chilled crust.
- Refrigerate the pie for at least 4 hours or overnight.
- Whip the heavy cream and powdered sugar until stiff peaks form.
- Spread the whipped cream over the pie before serving.
Notes
- Use fresh key lime juice for the best flavor.
- If key limes are unavailable, regular limes can be substituted.
- Chill the pie thoroughly before serving for a firmer texture.
- Prep Time: 20 minutes
- Cook Time: 0 minutes
- Category: Dessert
- Method: No-Bake
- Cuisine: American
Nutrition
- Serving Size: 1 slice
- Calories: 420
- Sugar: 45g
- Sodium: 220mg
- Fat: 22g
- Saturated Fat: 13g
- Unsaturated Fat: 7g
- Trans Fat: 0g
- Carbohydrates: 52g
- Fiber: 1g
- Protein: 7g
- Cholesterol: 65mg

