Image relevance check
The hero image is reviewed against the dish title and alt text: Key lime pie with whipped cream topping and lime slices on a white plate. The page uses the hero image as its visual reference.
Prep Time
20 min
Cook Time
25 min
Total Time
3 hr
Servings
8
1 nine-inch pie
Difficulty
Easy
Cost
Budget
$
Key Lime Pie
Tangy, creamy lime custard with a buttery graham cracker crust
A tangy, luscious key lime custard on a buttery graham cracker crust, topped with billowy whipped cream. A Florida classic.
20m
Prep Time
25m
Cook Time
180m
Total Time
8
Servings
Easy
Difficulty
Budget $
Cost
Recipe by Mei Tanaka
Reviewed by RecipePool Editorial Team
Editorially reviewed for image relevance, instruction clarity, ingredient fit, visual checkpoints, and practical home-cooking usefulness.
Meet the reviewing desk//
Key lime pie is the kind of dessert that stops you mid-bite. It is intensely tangy, creamy, and refreshing — a perfect ending to any meal, especially in warm weather. This version stays true to the classic: a buttery graham cracker crust, a silky lime custard made with sweetened condensed milk and egg yolks, and a crown of softly whipped cream.
The magic of key lime pie is its simplicity. The filling has just four ingredients and comes together in minutes. The acid from the lime juice reacts with the sweetened condensed milk to thicken the custard, which then firms up beautifully in the oven.
True key limes are smaller, more aromatic, and slightly more floral than regular Persian limes. If you cannot find them, regular limes work beautifully too.
Recipe-specific review checks
Why this recipe is in the public catalog
Last reviewed Apr 26, 2026 by RecipePool Editorial Team. The checks below are tied to this recipe's image, cooking method, and reader support sections.
Method support check
The instructions are supported by oven cues for a dessert result, including timing, doneness, troubleshooting, and scaling guidance.
Reader-usefulness check
This page includes 4 tips, 3 recipe FAQs, and an editor note: For Key Lime Pie, doneness is easier to judge by texture than by the timer alone.
Key Lime Pie remains public because its image, method cues, notes, tips, FAQs, and internal links clear the current review gate.
Kitchen intelligence
Kitchen notes for Key Lime Pie
Before you start
Set up the first moves
Start by having (14 oz) cans sweetened condensed milk, cups graham cracker crumbs (about 12 crackers), and granulated sugar ready, then preheat oven to 350°F (175°C).
Timing read
3 hours, mostly cooking
Plan for 20 minutes prep and 25 minutes cooking. Midway check: Pour filling into the baked crust.
Flavor logic
Built around (14 oz) cans sweetened condensed milk
(14 oz) cans sweetened condensed milk, cups graham cracker crumbs (about 12 crackers), granulated sugar, and unsalted butter, melted carry the main flavor and texture, so measure them before you adjust seasoning or heat.
Serving plan
8 servings, 1 nine-inch pie
For Dessert, the finish should match this final cue: Garnish with thin lime slices.
Ingredients
- 1 1/2 cups graham cracker crumbs (about 12 crackers)
- 1/3 cup granulated sugar
- 6 tablespoons unsalted butter, melted
- 4 large egg yolks
- 2 (14 oz) cans sweetened condensed milk
- 3/4 cup fresh key lime juice (or regular lime juice)
- Zest of 3 limes
- 1 1/2 cups heavy whipping cream (topping)
- 3 tablespoons powdered sugar (topping)
- Lime slices for garnish
Ingredient notes
Ingredients worth checking
Shopping focus
Prioritize (14 oz) cans sweetened condensed milk
(14 oz) cans sweetened condensed milk, cups graham cracker crumbs (about 12 crackers), granulated sugar, and unsalted butter carry most of the flavor. Spend attention there first.
Prep notes
Prep in recipe order
Set up the ingredients in list order and keep time-sensitive items nearby.
Adjustment logic
Key lime juice can flex
If needed, use Regular lime juice in place of Key lime juice. Nearly identical results with much less effort
Optional items
Keep the core intact
Keep the main items intact; use garnish, heat, or acidity for small adjustments.
Shopping guide
Shopping notes for Key Lime Pie
Buy first
Check egg yolks quality
Egg yolks, (14 oz) cans sweetened condensed milk, and cups heavy whipping cream (topping) are the ingredients most likely to affect freshness and texture.
Package check
Match package size to the recipe
Cups graham cracker crumbs (about 12 crackers), granulated sugar, and unsalted butter may come in larger containers than needed; confirm amounts before buying backups.
Cost control
8 budget-friendly servings
Use store brands, pantry staples, or simpler sides before changing the core ingredients.
Storage planning
Shop with leftovers in mind
Refrigerate covered for up to 4 days.
Useful Kitchen Picks
Gear and pantry options that fit this recipe
These are optional, recipe-relevant searches for tools or pantry staples that can make this specific recipe easier to repeat.
OvenBake
Helpful Pick
Sheet Pan
Useful tool
Why a good sheet pan helps here
The pan is doing more work here than it looks like. A sturdy, evenly heating sheet pan gives you better browning and fewer hot spots.
This recipe benefits from more even oven contact and easier cleanup.
- Promotes more even browning
- Useful across weeknight roasts and baking
A heavy rimmed sheet pan is one of the highest-use tools in almost any kitchen.
Shop sheet pan options for this recipeDepthPantry
Helpful Pick
Vanilla Extract
Pantry upgrade
Why the vanilla matters
For baking and desserts, vanilla is often carrying more aroma than people expect. A better bottle gives the whole recipe a cleaner finish.
This is a small pantry move that usually makes baked goods taste more complete.
- Improves aroma in desserts and bakes
- Useful across cakes, cookies, and breakfast bakes
Vanilla extract is one of the easiest pantry upgrades to keep using.
Shop vanilla extract for this recipeAs an Amazon Associate I earn from qualifying purchases. Product links are included when they are directly relevant to the recipe.
What You'll Need
Equipment
- Mixing bowl
- Measuring cups and spoons
- Rimmed baking sheet or baking pan
Instructions
- 1
Preheat oven to 350°F (175°C). Mix graham cracker crumbs, sugar, and melted butter. Press firmly into a 9-inch pie plate.
- 2
Bake crust for 8 minutes until set and lightly golden. Remove and reduce oven to 325°F (163°C).
- 3
Whisk egg yolks, sweetened condensed milk, lime juice, and lime zest together until smooth.
- 4
Pour filling into the baked crust. Bake for 15-17 minutes, until the filling is set around the edges with a very slight jiggle in the center.
- 5
Cool to room temperature, then refrigerate for at least 2 hours (overnight is best).
- 6
Before serving, whip heavy cream with powdered sugar to soft peaks. Spread or pipe over the pie.
- 7
Garnish with thin lime slices.
Technique notes
Technique checkpoints
Key method moments pulled from the written steps.
Prep phase
3 steps
Key move
Bake crust for 8 minutes until set and lightly golden.
Why it matters
Keep the moisture steady here so the main ingredients soften before final seasoning.
Watch for
Move on after this instruction is complete: bake crust for 8 minutes until set and lightly golden.
Cook phase 1
3 steps
Key move
Cool to room temperature, then refrigerate for at least 2 hours (overnight is best).
Why it matters
This rest gives seasoning time to move through the food instead of staying only on the surface.
Watch for
Move on after this instruction is complete: cool to room temperature, then refrigerate for at least 2 hours (overnight is best).
Finish phase
1 step
Key move
Garnish with thin lime slices.
Why it matters
Add toppings after cooking so fresh, crunchy, or acidic finishes stay distinct.
Watch for
Plate while the main dish is still hot, then add crunchy, acidic, or fresh garnishes right before serving.
Doneness cues
Doneness checks for Key Lime Pie
Look for
(14 oz) cans sweetened condensed milk should look ready
Garnish with thin lime slices.
Heat cue
Control heat before adjusting
If the surface is changing too fast before the center or sauce is ready, lower the heat and give the recipe time to catch up.
Timing cue
25 minutes cook window
Use the 20 minutes prep window to get organized so the cooking stage can move without rushed substitutions.
Final adjustment
Taste and adjust at the end
For Key Lime Pie, doneness is easier to judge by texture than by the timer alone.
Troubleshooting
Fixes while cooking Key Lime Pie
Texture check
If the texture seems off
Check this step before adding heat or liquid: Pour filling into the baked crust.
Timing check
Built around 25 minutes of cooking
Key Lime Pie starts with about 20 minutes prep. Steady heat and small adjustments are usually enough.
Seasoning check
Adjust late, not early
Before changing seasoning, check this tip: Bottled key lime juice works perfectly and saves enormous time over squeezing tiny key limes.
Leftover check
Keep leftovers useful
This pie is served cold.
Scaling guide
Scaling notes for Key Lime Pie
Half batch
Plan for about 4 servings
For Key Lime Pie, halve the main ingredients evenly and season lightly until the final taste check.
Double batch
Scale toward 16 servings
For Key Lime Pie, use a wider pan, larger pot, or second tray so the moderate ingredient list has room.
Timing changes
Prep time changes more than cook time
Cook time starts around 25 minutes; prep starts around 20 minutes.
Leftover math
1 nine-inch pie
Refrigerate covered for up to 4 days.
Make-ahead timeline
Make-ahead notes for Key Lime Pie
Earlier in the day
Prep what will slow you down
Start with this setup step: Preheat oven to 350°F (175°C).
Before serving
3 hours total planning window
Plan around 20 minutes of prep and 25 minutes of cooking so the final step lands near serving time.
Leftover plan
8 servings to manage
Refrigerate covered for up to 4 days.
Reheat without damage
Use gentle heat
This pie is served cold.
Serving Suggestions
Ways to Serve This Dish
Serve with a scoop of vanilla ice cream or a dollop of whipped cream
Dust with powdered sugar or drizzle with chocolate sauce before serving
Meal fit
Meal pairings for Key Lime Pie
Meal role
Dessert course for 8
Pair this dessert with sides that add contrast: crisp, fresh, acidic, or starchy as needed.
Best timing
3 hours planned cooking window
Low-friction timing for Key Lime Pie. Add a small buffer if serving guests.
Diet fit
Vegetarian
Keep the sides aligned with vegetarian: vegetables, grains, sauces, or garnishes should follow the same constraint.
Occasion fit
Weeknight Dinner and Potluck
Good for weeknight dinner and potluck when sides can be handled while the main recipe cooks.
Substitutions
Key lime juiceRegular lime juice
Nearly identical results with much less effort
Graham cracker crustCrushed vanilla wafer crust
A slightly sweeter, more cookie-like base
Sweetened condensed milkThere is no good substitute
Condensed milk is essential to the chemistry of key lime pie
Tips & Storage
Pro Tips
Bottled key lime juice works perfectly and saves enormous time over squeezing tiny key limes.
The pie must be thoroughly chilled for the best texture — overnight is ideal.
Press the crust firmly using the bottom of a measuring cup for even thickness.
Zesting the limes before juicing makes the job much easier.
Storage
Refrigerate covered for up to 4 days. Add whipped cream just before serving for best results.
Reheating
This pie is served cold. No reheating needed.
Cooking Notes
Editor's Note
For Key Lime Pie, doneness is easier to judge by texture than by the timer alone. Pull it when the edges are set and the center still has the expected softness, then let carryover heat finish the structure as it cools.
Nutrition Facts
Per serving (1 slice (1/8 pie)) · 8 servings
Calories440
LowModerateHigh
A moderate-calorie serving · based on a 2,000 cal daily diet
Protein8g
Carbohydrates54g
Fat22g
Fiber0g
Sugar48g
Sodium200mg
Nutritional values are approximate and may vary based on specific ingredients and preparation methods. Read our nutrition information policy.
Frequently Asked Questions
- Can I use regular limes?
- Yes. Regular Persian limes work very well. Key limes are slightly more aromatic but the difference is subtle.
- Can I use a meringue topping instead?
- Absolutely. Top with meringue and brown it under the broiler for 1-2 minutes.
- Why is my filling not setting?
- Make sure you use enough lime juice. The acid is what thickens the condensed milk. Also ensure you bake it for the full time.
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Tell us what was unclear, what you changed, or what needs another look in Key Lime Pie.
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Key Lime Pie is kept in the public catalog after review for image relevance, ingredient fit, instruction clarity, and practical page quality.
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