Dessert · American
Key Lime Pie
This is the creamy, tangy lime pie that always disappears fast at gatherings. A buttery biscuit crust holds a silky lime filling, all topped with softly whipped cream. It looks impressive but comes together with hardly any effort.

Why you'll love this
- Bright, tangy, and creamy in every bite.
- Simple ingredients and easy steps.
- Fully make-ahead, perfect for entertaining.
- No complicated pastry required.
EveryDayMeal recipe
Key Lime Pie
Ingredients
- 300g digestive biscuits
- 150g butter, melted
- 400g condensed milk
- 3 egg yolks
- 4 limes (zest and juice)
- 300ml double cream
- 1 tbsp icing sugar
- extra lime, to serve
Equipment
- 22cm loose-based tart tin
- Food processor or rolling bag
- Electric whisk
- Mixing bowls
- Zester or fine grater
Instructions
- Heat your oven to 160C (140C fan) and get out a 22cm loose-based tart tin so it is ready to fill.
- Blitz the biscuits in a food processor until they turn to fine crumbs, or seal them in a strong bag and crush with a rolling pin so no big pieces remain.
- Stir the crumbs into the melted butter until they look like wet sand, then press firmly into the base and up the sides of the tin to build a solid, even crust.
- Bake the crust for 10 minutes so it sets and firms up, then remove and let it cool completely before filling.
- Whisk the egg yolks in a large bowl for about a minute until slightly paler and loosened.
- Add the condensed milk and whisk for 3 minutes, then add the lime zest and juice and whisk for another 3 minutes until the filling thickens noticeably as the acid works on the milk.
- Pour the filling into the cooled crust and bake for 15 minutes, until the center is just set with only a slight wobble.
- Cool the pie, then chill for at least 3 hours or overnight so it slices cleanly and the flavor deepens.
- When ready to serve, carefully lift the pie from the tin onto a plate. Whip the cream with the icing sugar to soft peaks, then dollop or pipe over the top and finish with extra lime zest.
Tips from the kitchen
- Zest the limes before juicing them, it is much easier when they are whole.
- Roll the limes on the counter with your palm before juicing to release more liquid.
- Chill overnight for the cleanest slices and the best texture.
Estimated nutrition per serving: 480 cal · 6g protein · 45g carbs · 31g fat
Make it your own
- Swap digestives for graham crackers or ginger biscuits for a spicier base.
- Use bottled key lime juice for a more authentic sharp flavor.
- Add a thin layer of white chocolate under the filling for extra richness.
Storing & make-ahead
Keep covered in the fridge for up to 3 days. Add the whipped cream just before serving for the freshest look. Not suitable for freezing once topped with cream.
Good to know
- Can I make this ahead?
- Yes, make the pie a day ahead and chill overnight, then whip and add the cream just before serving.
- Why is my filling runny?
- It likely needs more chilling time or the whisking after adding the lime juice was too short. Give it a full 3 hours minimum to set.
- Do I have to bake the filling?
- This version bakes briefly to set the yolks safely, which gives a firmer, more sliceable pie.
- Can I use regular limes?
- Yes, regular limes work perfectly well. Key limes are more tart, but standard limes give great results.
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