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The Best Key Lime Pie

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The Best Key Lime Pie on the planet is made with 4 ingredients! That’s right…4 simple ingredients go into making this delicious creamy BEST EVER Key Lime Pie. It’s not too tart…not too sweet. To quote the girl with Gold Locks, who broke into the Bears house…”It’s just right!” (Kinda like me! Lol Whatever!) 

Key Lime Pie

If you’re looking for a show stopping, mouth-watering, quick, easy dessert to impress your guest at this year’s big cook out…look no further. This is it!

Key Lime Pie

My taste buds are so happy that I finally got around to making this delightful dessert! I truly feel Key Lime Pie is the perfect summer dessert! It’s just so refreshing.  I know you are going to love this version!

How To Make The Best Key Lime Pie

4 Ingredients for this scrumptious Key Lime Pie

  • 1 (9 inch) Graham Cracker Pie Crust, homemade or store-bought
  • 2 cans sweetened condensed milk
  • 1/2 cup sour cream
  • 3/4 cup key lime juice

I’m no fool…I’m not going to try to juice 300 tiny little key limes when Nellie and Joe’s famous Key West Lime Juice has been taking care of that for 45 years! You can juice the key limes if ya want…if not… I HIGHLY recommend this amazing product.

Photo of Key West Juice

To me summer means great food with less work! This pie was no exception. I try to avoid heating up my kitchen as much as possible. (We like to keep my alter-ego “mean sweaty midlife wench” locked up as long as possible) With a bake time of only 8–10 minutes and a prepared graham cracker crust…this pie meets the criteria.

Preheat your oven to 350°.

How To Make Key Lime Pie Filling

In a medium bowl, combine 2 cans of sweetened condensed milk (about 3 cups)…

Medium Bowl with Sweetened Condensed Milk

…sour cream, and lime juice. Mix until well combined.

Key Lime Pie filling

TIP: True Key Lime Pie isn’t green! It’s a rich cream color. However, if you’d like you can add a couple drops of green food coloring to give it a little depth of color. I added three drops. Just for fun.

Food coloring in Key Lime Mixture

Pour into prepared crust. (Let’s be sure to take the plastic liner out of the prepared pie crust. It’s just a little something extra I like to be sure to do! I highly recommend not eliminating this step! Lol)

Pie filling poured into crust

Let’s Talk Baking!

When I was a young mother my neighbor friend called one day while I was at work. She left a message on my machine telling me she was making cookies and the recipe called for “soda”! She wanted to know what kind? Root beer? Coke or Sprite? We still giggle about it to this day!

My point…we are all at different cooking levels. So I’m ALWAYS going to try to be as clear as I can be when giving instructions. Sometimes simple obvious things to the experienced baker are not so obvious to someone who has never been in the kitchen!

Bake your Key Lime Pie for 8–10 minutes. NO! You did not read that wrong. This is a “custard” pie, and it doesn’t require a long bake time. Bake until tiny pinhole bubbles burst on the surface of the pie.

DO NOT BROWN! (If you’re older and the ol’ eyes aren’t working as good as they used to…you won’t see those pinholes. Not gonna happen! No worries…just bake for the 10 minutes)

NOTE: After 10 minutes turn heat off and open the oven door slightly. Allow pie to sit in the cooling oven for 30 minutes.

Remove from oven. Chill pie completely before serving.

Close Up of Key Lime Pie

How To Garnish Key Lime Pie

Garnish with Whipped Cream Topping and Lime Slices.  Simple right? Aren’t you amazed that it was this easy! I know I was!

Slice of Key Lime Pie

The perfect slice of The Best Key Lime Pie!

This pie sets up beautifully! It’s so silky smooth it melts in your mouth! The balance between Tart and Sweet is “Spot On”! It doesn’t get any better than this my friends!!!

Finished Key Lime Pie

If you’re a lover of Key Lime Pie you need to give this recipe a try. I promise it will NOT disappoint! Plus it’s such a quick simple recipe. An all around WIN in my book!

If you love Key Lime Pie, you may also enjoy these other Pie Recipes

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Thanks for stopping by and visiting with me at my Nest! Have a wonderful day!

Norines Photo and signature
Yield: 8 servings

The Best Key Lime Pie

Best Key Lime Pie

The Best Key Lime that you'll ever have! Just four ingredients combine to make this silky creamy Key Lime pie that is the perfect balance between Tart and Sweet. It is truly the BEST Key Lime Pie EVER!

Prep Time 15 minutes
Cook Time 10 minutes
Inactive Time 30 minutes
Total Time 55 minutes


  • 1 (9 inch) graham cracker pie crust, prepared or homemade
  • 2 cans of sweetened condensed milk.
  • 1/2 cup sour cream
  • 3/4 key lime juice
  • Whipped Cream Topping and Lime Wedges for garnish

Whipped Topping Ingredients

  • 1 1/2 cups heavy whipping cream
  • 1 tsp vanilla extract
  • 6 Tablespoons Powder Sugar


  1. Preheat oven to 350°
  2. In medium bowl, combine condensed milk, sour cream, and lime juice. Mix well. Add two drops green food coloring if desired. Mix until well combined.
  3. Pour into graham cracker crust.
  4. Bake in preheated oven for 8-10 minutes, until tiny pinhole bubbles burst on the surface of the pie. DO NOT BROWN! Turn oven off and open oven door a crack. Allow to sit in cooling oven for 30 minutes.
  5. Remove from oven and chill completely before serving. Garnish with lime slices and whipped cream if desired.

Whipped Cream Topping

  1. In mixing bowl add one cup ice cold whipping cream. Add 1 teaspoon vanilla extract. With wire whisk attachment whip on medium high speed until stiff peaks form. Add Powder Sugar and mix until well blended.

Nutrition Information:


8 servings

Serving Size:

1 Slice of Pie

Amount Per Serving: Calories: 355Total Fat: 26gSaturated Fat: 14gTrans Fat: 1gUnsaturated Fat: 9gCholesterol: 63mgSodium: 123mgCarbohydrates: 29gFiber: 1gSugar: 18gProtein: 4g

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Heidi | The Frugal Girls

Tuesday 23rd of February 2021

Key lime pie is one of my favorites. I love how your recipe only requires 4 ingredients. 😍

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Thursday 25th of February 2021

Hi Heidi! Thank you so much for taking time out of your very busy schedule to stop by and check out this post. You're the best!! Have a great week Heidi! Happy Nesting! Norine


Monday 20th of January 2020

Key Lime Pie is one of my favorite foods in the whole world! This one looks fabulous. I love your little story of how your neighbor asked what kind of soda. Thank you for sharing this recipe.


Saturday 14th of July 2018

What size tip do you use for your whipped cream swirls. It's on the menu soon, so I need to know !!

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Saturday 14th of July 2018

Hi Denise!

I used a Wilton 2D tip. Although truthfully any large tip will work. Hope you love this recipe as much as I do. Thanks so much for visiting and taking the time to reach out. Have a wonderful weekend.

Happy Nesting! ~Norine

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