Key Lime Pie

This easy Key Lime Pie recipe has the perfect balance of tart and sweet flavors that Key West Florida is famous for! The buttery, slightly salty graham cracker crust contrasts beautifully with the smooth creamy lime filling. This rich but light key lime pie is one of the best refreshing desserts during the warm months and for the holidays!

For more popular summer dessert recipes try my cream cheese lemonade pie, no bake banana pudding pie, peach dump cake, lemon poke cake and berry poke cake!


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Best Key Lime Pie

I first tried a southern key lime pie on my honeymoon in Florida and it was love at first bite! So much so I had it every night for dessert and craved it when I got home.

This simple classic key lime pie is loaded with refreshing lime flavor featuring a smooth, creamy filling of sweet condensed milk, egg yolks and key lime juice that is melt in your mouth delicious!

A dollop of whipped cream on top adds an extra light and airy sweetness that along with the condensed milk helps to balance the tartness of this amazing baked key lime pie.

Slice of key lime pie served on a plate.

For more holiday dessert recipes try my no bake peanut butter pie, Paula Deen’s Chessman Banana Pudding, cinnamon roll cheesecake, mini pecan pies and Costco pumpkin pie.

Overhead image of key lime pie in baking dish with fork and plates on the side.

Ingredients

Ingredients key lime pie recipe.

Graham Cracker Crust

  • Graham Crackers – 2 cups
  • Light Brown Sugar
  • Butter – unsalted butter softened
  • Salt – pinch

Key Lime Pie Filling

  • Sweetened Condensed Milk – two 14-ounce cans of sweetened condensed milk
  • Key Lime Juice
  • Egg Yolk

Whipped Cream Topping

  • Heavy Whipping Cream – in a pinch you can use store bought ready made whipped cream
  • Powdered Sugar – helps to stabilize the whipped cream
  • Vanilla Extract

Key Lime Pie Garnish (Optional)

  • Lime Zest – grated zest of a lime on top of filling
  • Lime Slices – slices of store bought limes
Key lime pie served on a plate and bite on fork.

Lime Substitutes: Regular limes are fine for the zest and garnish slices. Use key limes for the zest if you have them, but they are notoriously hard to find and very hard to juice. That is why I recommend bottled key lime juice for the pie filling. If you can’t find bottled key lime juice, use regular limes or regular lime juice from the store. It won’t taste quite the same but it will still be delicious!

How To Make Key Lime Pie

Step by step images for how to make key lime pie.

STEP ONE- Preheat oven to 350°F

STEP TWO – For the crust: In a medium bowl, mix together the graham cracker crumbs, brown sugar, and salt. Break up any clumps of brown sugar.

STEP THREE – Pour the melted butter over the graham cracker mixture. Using a fork, mix the ingredients together, making sure all the graham crackers are moist.

 STEP FOUR – Press the crust mixture evenly into the bottom and up the sides of a 9-inch pie plate. Use the bottom and side of a measuring cup to press the crust into place. Do not pack the crust too hard.

STEP FIVE – Pre-bake the crust at 350 degrees for 8-10 minutes. Make sure it does not get too brown. Set the crust aside to cool a bit while you prepare the filling. Leave the oven on to avoid having to preheat again.

STEP SIX – Make the filling: Whisk the sweetened condensed milk, lime juice, and egg yolks together. You can whisk by hand or use an electric mixer at low speed. Pour into warm crust.

STEP SEVEN – Bake the pie for 20-25 minutes until it is just slightly jiggly in the center. The edges should not be jiggly. You want most of it set.

STEP EIGHT – Remove from the oven and allow to cool completely on a wire rack.

STEP NINE – For the whipped topping:  In a large bowl, using an electric mixer, beat the heavy cream until soft peaks form. Add the confectioners’ sugar and vanilla  and beat until medium peaks form. Top the pie with the whipped cream. Decorate with sliced limes and lime zest (optional)

STEP TEN – Cover and chill for at least 2 hours up to a couple of days before slicing and serving. I prefer to chill the pie overnight.

Step by step images for how to make key lime pie.

Handy tip: Chill Time!

Be sure to chill this key lime pie for at least 2 hours or preferably overnight in the fridge. This is a perfect pie to make ahead of time to serve the next day!

Key lime pie in a pie plate with slice of pie on small plate on the side.

Storage Instructions

Store covered with plastic wrap or in an airtight container in the fridge for up to 3 days.

Print
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Key lime pie in serving dish.

Key Lime Pie


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  • Author: Sandra Flegg
  • Total Time: 2 hours 50 minutes
  • Yield: One 9-inch pie

Description

This easy Key Lime Pie recipe has the perfect balance of tart and sweet flavors that Key West Florida is famous for! The buttery, slightly salty graham cracker crust contrasts beautifully with the smooth creamy lime filling. This rich but light key lime pie is one of the best refreshing desserts during the warm months and for the holidays!


Ingredients

For the crust:
2 cups graham cracker crumbs

1/3 cup light brown sugar

1/2 cup unsalted butter melted Pinch salt

For the pie filling:

28 ounces (two 14-ounce cans) sweetened condensed milk

1 cup (240ml) key lime juice
5 large egg yolks

Whipped Cream Topping

1 cup cold heavy whipping cream

1/2 teaspoon vanilla

2 Tablespoons powdered sugar

For the garnish:

Lime zest, lime slices,


Instructions

  1. Preheat oven to 350°F
  2. For the crust: In a medium bowl, mix together the graham cracker crumbs, brown sugar, and salt. Break up any clumps of brown sugar.
  3. Pour the melted butter over the graham cracker mixture. Using a fork, mix the ingredients together, making sure all the graham crackers are moist.
  4.  Press the crust mixture evenly into the bottom and up the sides of a 9-inch pie plate. Use the bottom and side of a measuring cup to press the crust into place. Do not pack the crust too hard.
  5. Pre-bake the crust at 350 degrees for 8-10 minutes. Make sure it does not get too brown. Set the crust aside to cool a bit while you prepare the filling. Leave the oven on to avoid having to preheat again.
  6. Make the filling: Whisk the sweetened condensed milk, lime juice, and egg yolks together. You can whisk by hand or use an electric mixer at low speed. Pour into warm crust.
  7. Bake the pie for 20-25 minutes until it is just slightly jiggly in the center. The edges should not be jiggly. You want most of it set.
  8. Remove from the oven and allow to cool completely on a wire rack.
  9. For the whipped topping:  In a large bowl, using an electric mixer, beat the heavy cream until soft peaks form. Add the confectioners’ sugar and vanilla  and beat until medium peaks form. Top the pie with the whipped cream. Decorate with sliced limes and lime zest (optional)
  10. Cover and chill for at least 2 hours up to a couple of days before slicing and serving. I prefer to chill the pie overnight.

Notes

Storage instructions: Store covered with plastic wrap or in an airtight container in the fridge for up to 3 days.

Limes: Regular limes are fine for the zest. Use key limes for the zest if you have them, but they are notoriously hard to find and very hard to juice. That is why we recommend bottled key lime juice for the pie filling. If you can’t find bottled key lime juice, use regular limes. It won’t taste quite the same but it will still be delicious.

Graham Cracker Crust: If you have whole graham crackers remember fourteen crushed graham crackers make 1 cup of crumbs so you will need 28 square graham crackers. If you use boxed graham cracker crumbs, measure out 2 cups. You can use a prepared graham cracker crust but you might have a little extra filling. Pour it into a small bowl and refrigerate for an awesome midnight snack.

Too much crust mixture? If you end up with too much of the graham cracker crust mixture don’t force it into the pie pan. Making the crust too thick messes with the crust-to-filling ratio of your pie.

  • Prep Time: 15 minutes
  • Chill Time: 2 hours
  • Cook Time: 35 minutes
  • Category: Dessert
  • Method: Oven Baked
  • Cuisine: American

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