Key lime pie, the authentic Key lime pie step by step


The famous Key lime pie is a Delicious key lime pie and very easy to prepare, ideal to drink at any time of the year, although its refreshing lime flavor makes it ideal to drink cool in summer. Its creamy texture, the crunchy cookie, the sweetness of the condensed milk and the acidity of the limes make it an irresistible cake that no one can say no to a bite of. This is a typical cake from the United States, specifically from the Florida Keys area, which is why it is also known as key lime piewhich is where the Key Limes that give it its name and with which the cake is originally prepared.

Key lime pie or key lime pie on plateMarina Corma

Recipe information

  • Preparation time: 30 minutes
  • Cooking time: 30 minutes
  • Total time: 1 hour (plus cooling time)
  • Rations: 8
  • Category: desserts
  • Type of cuisine: American
  • Calories per serving (kcal): 361

Key lime pie ingredients for 8 people

For the base:

  • 125 g chopped biscuit
  • 75 g unsalted butter, melted and cold

For the filling:

  • 4 egg yolks
  • 400 g condensed milk
  • 120 g lime juice
  • Zest of 2 limes

For decoration:

  • 100 g cold whipping cream (minimum 35% fat)
  • 20 g icing sugar

Key lime pie ingredientsMarina Corma

Necessary utensils

  • 23 cm removable mold

How to make Key lime pie

First, we preheat the oven to 180ºC and mix 125 grams of chopped biscuit with 75 grams of melted unsalted butter.

We mix the cookie with the butter from the key lime pieMarina Corma

We grease a 23 cm removable mold. Next, we cover the base and walls of the mold with the cookie and butter mixture.

We cover the mold with the key lime pie cookie.Marina Corma

We bake the cookie base for 15 minutes. After this time, we remove it from the oven and let it cool on a rack.

We cool the base of the key lime pieMarina Corma

Meanwhile, we prepare the cake filling. Beat 4 egg yolks until they are very fluffy, have doubled in volume and have lightened.

We beat the yolks of the key lime pieMarina Corma

We add 400 grams of condensed milk and mix well.

We mix the condensed milk of the key lime pieMarina Corma

We add 120 grams of lime juice and the zest of 2 limes. We mix until we have a homogeneous cream.

Add the juice and lime zest from the key lime pie.Marina Corma

We pour the previous mixture over the baked cookie base that we had reserved. We smooth the surface if necessary and bake for 15 minutes at 180ºC or until we see that the mixture is set.

We put the cream on the key lime pie cookieMarina Corma

We remove the cake from the oven and let it cool completely on a rack. Once tempered, we put it in the refrigerator for at least 2 hours so that, when it is time to serve, it is cold.

We cool the key lime pieMarina Corma

Once it has rested in the refrigerator, we decorate the cake with whipped cream. To do this, we whip 100 grams of very cold whipping cream with 20 grams of icing sugar.

We decorate the key lime pieMarina Corma

We serve the Key lime pie cold.

Interior of key lime pieMarina Corma

Easy Preparation Summary

  1. We preheat the oven to 180 ºC. We mix the cookie with the butter
  2. We grease the mold and cover it completely with the cookie mixture.
  3. We bake the cookie base for 15 minutes and let it cool on a rack.
  4. Beat the yolks until they double in volume.
  5. We add the condensed milk
  6. We add the juice and lime zest
  7. Pour the mixture over the cookie base and bake for 15 minutes.
  8. We let the cake cool on a rack and put it in the refrigerator for at least 2 hours.
  9. We decorate with whipped cream
  10. We serve cold