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Key Lime Pie

A slice of key lime pie, viewed from the side.
Difficulty Beginner
Prep Time: 5 min Cook Time: 20 min Rest Time: 4 hour Total Time: 4 hrs 25 mins
Servings 8
    Biscuit base
  • 175 grams digestive biscuits (about 9 biscuits)
  • 75 grams salted butter (plus extra for greasing)
  • 2 tablespoons caster sugar
  • 1/2 teaspoon ground cinnamon
  • Topping
  • 400 grams tin of condensed milk
  • 125 milliliters freshly squeezed lime juice (see notes)
  • 4 egg yolks
  • finely grated zest of 3 limes
  • To bake
  • Nonstick pie tin (ideally springform)
  • Food processor (or something to smash the biscuits with)
  • Electric whisk (or strong hands!)
  • To serve
  • whipped cream
  • sprinkle of cinnamon
    To prepare
  1. Preheat oven to 170ยบ. Grease the pie tin with a little butter.

  2. Melt the butter over a bowl of hot water.

  3. Make the base
  4. Pulse the biscuits, sugar and cinnamon in the food processor until you get coarse crumbs or smash manually with a rolling pin and combine the ingredients in a large bowl.

  5. Gradually add the melted butter to the biscuit mixture and combine well.

  6. Tip the mixture into the pie tin and press firmly into place to create a solid base.

  7. Put in the oven for 5 minutes to set.

  8. Make the lime topping
  9. Whisk all of the filling ingredients until well combined.

  10. Pour the filling over the set base, smoothing out to the edges.

  11. Put back in the oven for 15 minutes until the edges have start to set. The pie should still be a bit wobbly at this stage.

  12. And now we wait
  13. Allow to cool completely then put in the fridge for at least 4 hours but ideally overnight,

  14. To serve
  15. Whip the cream and spread over the pie. Dust a small amount of cinnamon over the top.

  16. Slice and enjoy!

  • It stands to reason that this recipe isn't a key lime pie if you don't have key limes! Key limes, also known as Mexican or West Indian limes, are more aromatic, with tarter and more floral juice. However, the recipe will still work with regular limes. (Key limes aren't easy to find in Germany!)
  • You'll have the white of 4 eggs left over after creating this. You don't need to throw it out, egg white freezes very well!
Keywords: dessert, lime, pie
Hazel Reitz