Key Lime Pie Recipe
- clemievegancake
- Jul 30, 2025
- 3 min read
So fresh and zingy - the perfect summertime dessert!

Download and save a PDF of this recipe with extra tips & tricks!
Makes one 8” dish
Ingredients for base; Ingredients for pie filling;
300g ginger biscuits 250ml vegan double cream (I used Elmlea)
130g melted vegan butter 400g vegan condensed milk (I used 2x tin of Biona)
70g cornflour
Ingredients for lime curd; Juice and zest of two limes
75g vegan butter
80g granulated sugar Ingredients for marshmallow meringue topping;
Juice and zest of two limes Liquid from one tin of chickpeas (aquafaba)
15g cornflour 100g granulated sugar
15g plant milk ½ tsp of xantham gum
You will also need; a mixing bowl, an electric hand mixer or stand mixer, spoon or spatula, saucepan, whisk, small bowl, 8” loose base or springform tin, food processor or rolling pin, optional – blow torch
Method;
1. Begin by making the pie base. Crush the ginger biscuits into fine crumbs using a food processor or by placing in a food bag and crushing with a large wooden spoon or rolling pin
2. Add the melted butter to the biscuit crumbs and mix together
3. Press the biscuit crumb mixture firmly into the baking tin to create an even base and sides
4. Place the baking tin in the fridge or freezer to set the base and move on to making the pie filling
5. Add the cornflour and roughly half of the cream to the saucepan. Use a whisk to mix together to form a smooth paste
6. Add the remaining cream, a little at a time, while continuously whisking to create a smooth mixture
Add the lime juice, zest and condensed milk and whisk again until the mixture is smooth
8. Heat gently on a low heat while continuously whisking until the mixture begins to come to the boil. It should be thick and creamy
9. Remove from the heat and carefully pour into the cold pie base
10. Set aside to cool and then transfer into the fridge or freezer to set. Make the lime curd
11. Add the butter, sugar, lime juice and lime zest (leave out the zest if you want a completely smooth curd) to the saucepan and melt together on a low heat
12. In a small bowl, whisk together the cornflour and plant milk to form a smooth and runny paste
13. Once everything has melted together in the saucepan, slowly add the cornflour mixture while continuously stirring
14. Keep continuously stirring until the curd begins to thicken. Pour into the small bowl and set aside to cool
15. Once the pie filling is cold and set, pour the cooled lime curd mixture on top and carefully smooth out
16. Put the pie back in the fridge or freezer to set again
17. Just before serving, make the marshmallow meringue topping
18. In a clean mixing bowl, whip the aquafaba until bubbly and fluffy
19. Add the xantham gum and sugar a little at a time while continuously whipping the mixture
20. Keep whipping until the mixture has is thick and fluffy and does not slide about in the bowl – if in doubt, whip a bit more!
21. Spoon the marshmallow meringue mixture on top of the set pie filling
22. Blow torch the top of the meringue to create a yummy toasted marshmallow topping or if you don’t have a blow torch, place under a hot grill for a few seconds – be careful not to melt the pie filling under the meringue!
23. Eat and enjoy!




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