Key Lime Pie with Graham Cracker Crust
This key lime pie uses a crisp graham cracker base and a tangy baked filling of egg yolks, condensed milk and fresh lime.
This key lime pie uses a crisp graham cracker base and a tangy baked filling of egg yolks, condensed milk and fresh lime. The source omits condensed milk even though its method depends on a thick filling, so it is included here to make the pie work. Bake only until the center has a slight wobble, then chill thoroughly before slicing. Use pasteurized eggs if adding a separate meringue topping. Heat oven to 175°C (350°F); mix crumbs and butter, press into a 23 cm pie plate and bake 8 minutes; cool slightly. Whisk egg yolks and lime zest until thick; whisk in condensed milk, then lime juice until smooth. Pour filling into crust and bake 15 to 18 minutes until edges set and center has a slight wobble.

Recipe card
Key Lime Pie with Graham Cracker Crust
Equipment: Mixing bowls, measuring tools and suitable baking pan or appliance
Ingredients
Instructions
Crust
Heat oven to 175°C (350°F); mix crumbs and butter, press into a 23 cm pie plate and bake 8 minutes; cool slightly.
Filling
Whisk egg yolks and lime zest until thick; whisk in condensed milk, then lime juice until smooth.
Bake
Pour filling into crust and bake 15 to 18 minutes until edges set and center has a slight wobble.
Chill
Cool at room temperature, then refrigerate at least 4 hours until firm.
Serve
Slice cold and top with whipped cream if desired.
How to tell when it is ready
Slice cold and top with whipped cream if desired.
Tips
- Heat oven to 175°C (350°F).
- Whisk egg yolks and lime zest until thick.
- Pour filling into crust and bake 15 to 18 minutes until edges set and center has a slight wobble.
- Cool at room temperature, then refrigerate at least 4 hours until firm.
Troubleshooting
- If filling is runny, bake until just set and chill longer.
- If crust crumbles, press firmly and pre-bake.
Substitutions
- Use digestive biscuits for graham crackers.
- Use lemon juice for a different citrus pie.
Variations
- Use regular limes if key limes are unavailable.
- Add toasted coconut to crust.
Serving suggestions
- Top with whipped cream.
- Add extra lime zest.
- Serve chilled.
- Offer with berries.
Make ahead
Prepare the measured ingredients in advance. Refrigerate covered up to 3 days; do not leave pie at room temperature for extended periods.
Storage
Refrigerate covered up to 3 days; do not leave pie at room temperature for extended periods.
Food safety
Bake egg filling until set; use pasteurized eggs for any uncooked meringue garnish.
Frequently asked questions
How do I know key lime pie with graham cracker crust is ready?
Slice cold and top with whipped cream if desired.
How should I store key lime pie with graham cracker crust?
Refrigerate covered up to 3 days; do not leave pie at room temperature for extended periods.
Top with whipped cream. Refrigerate covered up to 3 days; do not leave pie at room temperature for extended periods.
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