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This single serving Key Lime Pie is smooth, creamy, and full of bright citrus flavor. It’s made with a buttery graham cracker crust and a tangy lime filling, then chilled until perfectly set. A quick and easy dessert that feels special without the extra servings.

a small key lime pie on a silver tray.

Why You’ll Love This Recipe

  • Perfectly Portioned: Just the right size for one.
  • Simple to Make: Minimal ingredients and easy steps.
  • Great Texture: Buttery crust with a smooth, creamy filling.
  • Budget-Friendly: Made with basic, affordable ingredients.

If you love the tangy flavor of a classic Key Lime Pie, you’ve got to try this single serving version. It’s everything you want in a pie: refreshing, creamy, and packed with citrus flavor in a portion that’s just right for one person.

I make this recipe when I want something sweet that doesn’t take much time or effort. The buttery graham cracker crust pairs perfectly with the smooth lime filling, and a dollop of whipped cream on top makes it feel extra special.

Looking for more mini pie recipes? Try our small lemon meringue pie, mini coconut cream pie, single serving chocolate pie, and easy peanut butter pie recipe for one. Each is full of flavor and perfectly portioned.

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Ingredients

ingredients in key lime pie on a wooden cutting board.

If you have any ingredients leftover from this single serve key lime pie recipe, check out our Leftover Ingredients Recipe Finder.

See recipe card below for a full list of ingredients and measurements.

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How To Make A Key Lime Pie

These photos and instructions are here to help you visualize how to make an individual key lime pie. See the recipe card below for ingredient amounts and full recipe instructions.

Make the Crust

  1. Preheat the oven to 350°F (177°C).
  2. Crush 2 graham cracker sheets into fine crumbs using a rolling pin or food processor (you’ll get about ¼ cup).
  3. Transfer crumbs to a small bowl, add melted butter, and mix well.
  4. Press the mixture firmly into the bottom of a 10-ounce ramekin.
  5. Bake for 15 minutes, then set aside to cool.
a graham cracker crust in the bottom of a small white ramekin.

Make the Filling

  1. In a small bowl, whisk together 2 egg yolks and 2 ½ tablespoons lime juice.
  2. Stir in ¼ cup sweetened condensed milk and whisk until smooth and slightly thickened.
  3. Pour the filling into the cooled crust and bake for 15 minutes.
  4. Let cool at room temperature for 20 minutes, then refrigerate for at least 3 hours.
an unbaked mini key lime pie on a wooden table.

Top with homemade whipped cream before serving. Serve cold.

a small key lime pie in a white ramekin with a spoon on the side.

Expert Tips

  • Crust Texture: Mix crumbs and butter until the mixture looks like wet sand.
  • Whisk Well: Whisk the filling thoroughly for a smooth, lump-free texture.
  • Check While Baking: Watch closely to avoid over-browning.
  • Chill Time: Refrigerate for at least 1 hour to let the pie set properly.

Frequently Asked Questions

What size dish should I use?

A 10-ounce ramekin or similar-sized oven-safe dish is ideal.

Can I make a key lime pie ahead of time?

Yes, make it up to 2 days in advance. Keep it covered and refrigerated.

How do I know when a key lime pie is done baking?

The filling should be set around the edges but slightly jiggly in the center. It will firm up as it cools.

Can I double the recipe?

Yes, simply double all the ingredients and use two 10-ounce ramekins or one 5×5-inch baking dish.

RELATED: 15 Easy Dessert Recipes For One

Ways To Use Leftover Ingredients

If you have any ingredients leftover from this recipe, check out our Leftover Ingredients Recipe Finder or you might like to consider using them in any of these single serving and small batch recipes:

If you’ve tried this “key lime pie for one” or any recipe on One Dish Kitchen please let me know how you liked it by rating the recipe and telling me about it in the comment section below.

If you take a picture please tag us on Instagram (@onedishkitchen) we’d love to see it!


Cooking For One Made Easy
Because you’re worth it

Mini Key Lime Pie

4.9 from 29 votes
By: Joanie Zisk
Prep: 10 minutes
Cook: 30 minutes
Cooling TIme: 3 hours
Total: 3 hours 40 minutes
Servings: 1 serving
This single serving Key Lime Pie features a buttery graham cracker crust and a creamy lime filling, topped with whipped cream and chilled until set.
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Equipment

Ingredients 
 

For the Crust

  • ¼ cup graham cracker crumbs (2 standard sheets of graham crackers)
  • 1 tablespoon salted butter -melted

For the Filling

  • 2 large egg yolks
  • 2 ½ tablespoons lime juice
  • ¼ cup sweetened condensed milk

For the Whipped Cream (optional)

  • ¼ cup heavy cream
  • 1 teaspoon granulated sugar
  • ¼ teaspoon vanilla extract

Instructions 

Make the Crust

  • Preheat the oven to 350°F (177°C).
  • Transfer crumbs to a small bowl, add melted butter, and mix well.
  • Press the mixture firmly into the bottom of a 10-ounce ramekin.
  • Bake for 15 minutes, then set aside to cool.

Make the Filling

  • In a small bowl, whisk together egg yolks and lime juice.
  • Stir in the sweetened condensed milk and whisk until smooth and slightly thickened.
  • Pour the filling into the cooled crust and bake for 15 minutes.
  • Let cool at room temperature for 20 minutes, then refrigerate for at least 3 hours.

Make the Whipped Cream

  • Using a hand mixer or whisk, beat the heavy cream, sugar, and vanilla on medium speed until soft peaks form. The mixture will thicken, increase in volume, and look smooth. When you lift the beaters or whisk, the peaks should curl and gently fold back into the cream.
    Yields about ½ cup of whipped cream.

Notes

  • Crust Texture: Mix crumbs and butter until the mixture looks like wet sand.
  • Whisk Well: Whisk the filling thoroughly for a smooth, lump-free texture.
  • Check While Baking: Watch closely to avoid over-browning.
  • Chill Time: Refrigerate for at least 1 hour to let the pie set properly.
 
If doubling the recipe, double all ingredient amounts and use either two 10-ounce ramekins or one 5×5-inch baking dish.

Nutrition

Serving: 1serving, Calories: 729kcal, Carbohydrates: 67g, Protein: 15g, Fat: 51g, Saturated Fat: 29g, Polyunsaturated Fat: 3g, Monounsaturated Fat: 15g, Trans Fat: 1g, Cholesterol: 491mg, Sodium: 284mg, Potassium: 453mg, Fiber: 1g, Sugar: 51g, Vitamin A: 1934IU, Vitamin C: 11mg, Calcium: 325mg, Iron: 2mg

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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Welcome!

I’m Joanie, chef, author of The Ultimate Cooking for One Cookbook, and creator of One Dish Kitchen. With 10+ years of experience developing single serving and small batch recipes, I’m passionate about making cooking for one simple and enjoyable. So glad you’re here!

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4.87 from 29 votes (9 ratings without comment)

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53 Comments

  1. Lynn Woods says:

    This looks so good! I’m going to have to try it soon.

  2. Taryn says:

    One of my favorite desserts is key lime pie. The fact that I can whip this up just for myself when the craving hits is amazing!

    1. Sonya says:

      If you use actual key limes, would you use the same amount listed for the limes?

      1. Joanie Zisk says:

        Yes, use the same amount of lime juice.

  3. Cara says:

    This looks delicious and I love that you can make a single serving.

  4. Marissa says:

    This is perfect! Sometimes you want a little treat, but don’t feel like making an entire dessert (because you’ll end up eating the whole thing!). I can’t wait to try this for Summer!

    -Marissa

  5. Andi says:

    I love single serving desserts!

  6. Allison says:

    So easy! I love that I can have pie anytime!

  7. Megan says:

    Yum!

  8. Nan says:

    I’ll take this WHOLE dessert please!

  9. Michelle says:

    I love single serve desserts! It’s so nice to be able to have a fancy dessert without having leftovers for days! I am so excited to try this!

  10. Lauren says:

    This is genius!! I’ve been loving single serve desserts lately.