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The Best Key Lime Pie For One

All the flavors you love in a key lime pie can be found in this Key Lime Pie Recipe For One! Smooth and creamy with the perfect balance of tart and sweet. Baked in a ramekin or small baking dish, this classic pie comes complete with a buttery graham cracker crust. So easy to make!

A small key lime pie topped with whipped cream in a ramekin next to a jar of lime juice and a dish filled with whipped cream all on a metal tray

If you're a fan of key lime pie then you will absolutely love this key lime pie for one.

This mini pie starts with a traditional buttery graham cracker crust which is topped with a smooth and creamy lime filling. Baked in a ramekin or small baking dish, this single serving dessert is perfect for anyone cooking for one.

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A mini key lime pie in a ramekin on a silver tray.

What Is Key Lime Pie?

Key lime pie is an American dessert made with key lime juice. It is typically made with a graham cracker crust and is a specialty of the Florida Keys.

What Is The Difference Between Key Limes and Regular Limes?

Key limes are more aromatic and tart than regular limes. They are slightly yellow and contain more seeds.

Can I Use Regular Lime Juice In This Key Lime Pie Recipe?

Yes, you can use the juice from regular limes in this recipe.

How To Make Key Lime Pie

Like a traditional key lime pie, this mini pie has a graham cracker crust.

Scroll down to the recipe box for the ingredient amounts and complete recipe instructions.


For The Crust:

  • graham cracker crumbs
  • butter

For The Key Lime Filling:

  • egg yolks
  • lime juice
  • sweetened condensed milk

Pro Tip: Key lime juice is wonderful if you can find key limes and if you can, by all means use them. When I can't find key limes, regular limes will do just fine or use bottled key lime juice.


  1. Mix together 1/4 cup of graham cracker crumbs (approximately 2 large sheets of graham crackers) and melted butter. Pour the crumbs into an 8-ounce ramekin and bake for about 15 minutes to set the crust.
  2. After the crust has baked, pour in the key lime custard which is a mixture of sweetened condensed milk, two egg yolks and lime juice.
  3. Bake the pie in the oven for about 15 minutes. Remove from the oven to cool a bit and chill in the refrigerator for at least 1 hour.
  4. Top with whipped cream and enjoy!
A partially eaten key lime pie topped with whipped cream with a spoon resting on the edge of the dish with a jar of lime juice and a dish of whipped cream in the background

For this Key Lime Pie For One recipe, I use a ramekin that holds about 1-cup. For best results, please use a baking dish of similar size.

If you would like more information on the cooking and baking dishes I use in our “recipes for one”, please visit our FAQ page.

Examples of the dishes used at One Dish Kitchen can be found at our Store page.

RELATED: Best Homemade Food Gifts

What To Do With Leftover Egg Whites

Be sure to save the egg whites and don’t throw them away. You might like to use the egg white in any one of these fantastic recipes…

The remaining sweetened condensed milk can be used in a small batch of fudge or in a Lemon Mango Pie for one.

Other Single Serving Pie Recipes

Key Lime Pie For One | One Dish Kitchen

The Best Key Lime Pie Recipe For One

Prep Time: 10 minutes
Cook Time: 30 minutes
Cooling TIme: 1 hour
Total Time: 1 hour 40 minutes
Course: Dessert
Cuisine: Dessert
Keywords: key lime, pie
Servings: 1 person
Calories: 551kcal
Author: Joanie Zisk



  • 1/4 cup crushed graham cracker crumbs (2 large sheets graham crackers)
  • 1 tablespoon butter , melted


  • 2 large egg yolks
  • 1/8 cup + 1/2 tablespoon lime juice
  • 1/4 cup sweetened condensed milk


  • Preheat oven to 350 degrees F (177 degrees C).
  • Place the 2 sheets of graham crackers in a ziplock bag, seal and roll with a rolling pin or heavy can to crush.
  • Pour crumbs into a small bowl and stir in melted butter.
  • Pour the crumbs into a ramekin that holds about 1 cup.
  • Using your fingers or the back of a spoon, press the crumbs gently so they form a crust on the bottom.
  • Bake the crust for 15 minutes.
  • Remove from the oven and set aside to cool.
  • Mix the eggs and lime juice in a small mixing bowl. Add the condensed milk and whisk until smooth and thick.
  • Pour mixture into crust and bake for 15 minutes.
  • Remove from oven, allow to cool, then refrigerate for at least 1 hour.


Note: This Key Lime Pie For One recipe calls for 2 egg yolks. Be sure to save and refrigerate the egg whites and use them to make Meringues or scramble them up for breakfast the next morning or use them to make a cheesy egg white omelet.
The remaining sweetened condensed milk can be used in a small batch of fudge or in a Lemon Mango Pie for one.


Calories: 551kcal | Carbohydrates: 61g | Protein: 13g | Fat: 29g | Saturated Fat: 14g | Cholesterol: 425mg | Sodium: 352mg | Potassium: 358mg | Sugar: 47g | Vitamin A: 1045IU | Vitamin C: 10.9mg | Calcium: 278mg | Iron: 1.8mg

The information shown is an estimate provided by an online nutrition calculator. It should not be considered a substitute for a professional nutritionist’s advice.

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36 thoughts on “The Best Key Lime Pie For One”

  1. Makenzie Ford

    Will using key limes and regular limes make a big difference? I also cant wait to make this, they look delicious, already bought the ingredients and more to make multiple times!

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