Key Lime Pie

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Quick Bite

A classic American dessert originating from the Florida Keys, featuring a tart, creamy filling made from Key lime juice, egg yolks, and sweetened condensed milk, typically set in a graham cracker crust. Key limes are smaller, more acidic, and more aromatic than regular limes, creating a distinctive tangy flavor.

History

Key lime pie is a classic American dessert with deep roots in the tropical history of the Florida Keys.

The pie is traditionally linked to the Florida Keys, especially Key West, where early settlers in the late 1800s and early 1900s created the recipe using simple, shelf-stable ingredients. Before refrigeration was common, canned sweetened condensed milk became a key ingredient, replacing fresh milk and cream.

The signature flavor comes from Key limes, smaller, more aromatic limes that were widely grown in the Florida Keys at the time. Early versions of the pie were incredibly simple: lime juice, sweetened condensed milk, and egg yolks poured into a crust and allowed to set.

By the early 20th century, the dessert had become a regional staple among fishermen and sponge divers in the Keys. Over time, it spread throughout Florida and eventually across the United States, evolving into baked versions with meringue or whipped cream toppings.

Today, Key lime pie is widely considered Florida’s signature dessert, with strong cultural ties to the Keys. It was officially designated the state pie of Florida in 2006.

Fun Facts

• Real Key lime pie is usually pale yellow, not bright green.
• Neon-green versions often use food coloring or standard limes.
• Some traditional recipes top it with meringue, while modern versions often use whipped cream.
• Floridians still debate whether meringue or whipped cream is the “correct” topping.
• Early Keys residents relied on shelf-stable ingredients, making the pie practical as well as delicious.

Where to Try

Key Lime Pie Bakery Key West, Florida

Kermit’s Key Lime Pie Shop Key West, Florida

Blue Heaven Key West, Florida

Recipe

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Key Lime Pie Servings: 8 Prep: 20 minutes, plus chilling Bake: 20–25 minutes total Difficulty: Easy Style: Florida Keys Dessert

Ingredients

For the crust

• 1 ½ cups graham cracker crumbs
• ⅓ cup sugar
• 6 tbsp melted butter

For the filling

• 4 egg yolks
• 1 can sweetened condensed milk, 14 oz
• ½ cup fresh Key lime juice, or regular lime juice if needed
• 1 tbsp lime zest, optional, for extra flavor

For topping, optional

• Whipped cream or meringue
• Lime slices

Instructions

1. Make the crust: Mix graham cracker crumbs, sugar, and melted butter until it feels like wet sand.
2. Press firmly into a 9-inch pie dish.
3. Bake at 350°F for 8–10 minutes.
4. Let the crust cool slightly.
5. Make the filling: In a bowl, whisk egg yolks until slightly thickened.
6. Add sweetened condensed milk and mix until smooth.
7. Stir in Key lime juice and lime zest if using.
8. The mixture will thicken almost immediately.
9. Fill the crust: Pour filling into the cooled crust and smooth the top.
10. Bake: Bake at 350°F for 12–15 minutes.
11. The pie should be just set and still have a slight jiggle in the center.
12. Chill: Refrigerate for at least 3–4 hours, preferably overnight.
13. Top and serve: Add whipped cream or meringue and garnish with lime slices before serving.

Serving note: Key lime pie slices best when fully chilled. For a classic look, keep the filling pale yellow and finish with whipped cream, meringue, or simple lime slices.

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