Key Lime Meringue Pie with Almond Crust
Bright, tart key lime filling meets silky meringue in this classic dessert. The almond-graham cracker base provides nutty richness that balances the intense lime flavor, making it ideal for warm-weather entertaining or elegant dinner parties. This version skips the traditional all-butter crust for a more textured, flavorful foundation that won't overpower the tangy filling.
Ingredients
- 9 piece graham crackers (5-by-2.5-inch), broken into small pieces
- 1 cup sliced or slivered almonds
- ⅓ cup granulated sugar
- 8 tablespoon unsalted butter, melted
- 2 can (14 oz) sweetened condensed milk
- 2 piece key limes, grated zestregular limes1:1acidity
less intense lime flavor
- 1 cup fresh key lime juice
- 4 piece large egg yolks, room temperaturecornstarch (3 tbsp) + whole milk (1/4 cup)1:1bindingeggs-freeadds dairy
vegan option, slightly looser set
Full guide → - 4 piece egg whites, room temperature
- ½ teaspoon cream of tartar
- 6 tablespoon granulated sugar
- ½ teaspoon vanilla extract
Instructions
- 1
Preheat oven to 350°F with rack in middle and butter a 9-inch pie plate.
- 2
Pulse graham crackers, almonds, and sugar in a food processor until finely ground.
- 3
Transfer mixture to a bowl and stir in melted butter.
- 4
Press crumb mixture evenly onto bottom and up side of pie plate.
- 5
Bake crust until lightly browned, then cool completely.
- 6
Whisk together sweetened condensed milk, key lime zest, key lime juice, and egg yolks until smooth.
- 7
Pour filling into cooled crust.
- 8
Bake filling until just set in center, then let cool.
- 9
Whip egg whites and cream of tartar in electric mixer with whisk attachment.
- 10
Add sugar 1 tablespoon at a time while whipping until stiff peaks form and meringue is glossy.
- 11
Whip in vanilla extract.
- 12
Spread meringue over cooled filling.
- 13
Optionally torch the meringue top until browned.
- 14
Refrigerate until ready to serve.
Tips
Use fresh key lime juice for authentic tang; bottled juice lacks complexity and brightness.
Bring egg whites to room temperature for maximum volume and stability when whipping.
Spread meringue immediately after filling cools to seal moisture and prevent shrinkage.
Good to Know
Cover and refrigerate up to 3 days. Do not freeze; meringue becomes tough and weeps when thawed.
Bake crust 1 day ahead. Prepare filling 8 hours ahead and refrigerate; add meringue topping within 2 hours of serving.
Serve chilled or at room temperature. Whipped cream or fresh lime slices complement the tartness.
Common Mistakes
Do not overbake filling to avoid curdling from the egg yolks; 15-20 minutes at 350°F is sufficient.
Do not add sugar too quickly to egg whites to prevent deflating the foam and losing volume.
Do not refrigerate uncovered to avoid meringue absorbing moisture and becoming sticky.
Substitutions
less intense lime flavor
vegan option, slightly looser set
Full guide →FAQ
Can I make this without fresh key limes?
Yes, use bottled key lime juice in equal measure. Note: flavor will be less vibrant. Fresh regular lime juice works in a pinch but delivers different tartness levels; start with 3/4 cup and adjust to taste.
What if my meringue weeps or shrinks?
Weeping occurs when meringue is spread on hot filling or from refrigeration. Ensure filling is completely cooled before topping. Shrinkage happens from overbaking; reduce oven time to 8-10 minutes if edges brown first.
How long can I keep this pie refrigerated?
Store covered up to 3 days. Beyond that, meringue deteriorates and filling may separate. Do not freeze; thawing breaks down meringue structure and creates liquid weeping.