This recipe is all about simplicity without sacrificing taste. With just three ingredients and no complicated steps, you can whip up a luscious dessert that tastes like it took hours to make. It’s perfect for summer, potlucks, holidays, or anytime you need a refreshing and light dessert. Plus, it sets beautifully and slices cleanly, making for an impressive presentation.
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
Sweetened condensed milk
Key lime juice (fresh or bottled)
Pre-made graham cracker crust
Directions
In a mixing bowl, whisk together the sweetened condensed milk and key lime juice until fully combined and thickened.
Pour the mixture into the pre-made graham cracker crust and smooth the top with a spatula.
Refrigerate for at least 3–4 hours, or until the pie is fully set.
For best results, chill overnight before serving.
Slice and serve chilled. Optionally, top with whipped cream or lime zest for extra flavor and presentation.
Mini Key Lime Pies: Use mini graham cracker crusts for individual servings.
Tart Version: Use fresh key lime juice for a more intense citrus flavor.
Topping Ideas: Add whipped cream, lime zest, or a sprinkle of crushed graham crackers on top.
Coconut Twist: Stir in a bit of coconut extract for a tropical variation.
Frozen Pie: Freeze the pie for a firmer texture, similar to an icebox dessert.
Storage/Reheating
Store any leftovers covered in the refrigerator for up to 5 days. For longer storage, wrap the pie tightly and freeze for up to 2 months. To serve from frozen, let it thaw in the refrigerator for a few hours before slicing. Do not reheat, as this is a chilled dessert.
FAQs
Can I use regular lime juice instead of key lime juice?
Yes, regular lime juice can be used, though key lime juice has a more distinct and slightly sweeter flavor.
Is the pie baked?
No, this is a no-bake pie. The acidity from the lime juice thickens the sweetened condensed milk without baking.
Can I make it ahead of time?
Absolutely. It’s actually best when made ahead and chilled for several hours or overnight.
Does it really only need three ingredients?
Yes! The basic version requires just sweetened condensed milk, key lime juice, and a graham cracker crust.
What brand of key lime juice should I use?
Bottled key lime juice such as Nellie & Joe’s is a popular and convenient option, but fresh juice is great if available.
Can I use a homemade crust?
Yes, you can use a homemade graham cracker crust if preferred. Just be sure to chill or bake it as needed before filling.
Why does the filling thicken without baking?
The acid in the lime juice reacts with the proteins in the sweetened condensed milk, causing it to thicken naturally.
Can I freeze the pie?
Yes, freezing works well for this pie. It will have a firmer, ice-cream-like texture when served frozen.
Is this pie overly sweet?
The tanginess of the lime juice balances the sweetness of the condensed milk, resulting in a well-rounded flavor.
What’s the best way to slice the pie?
Use a sharp knife and wipe it clean between slices for neat, clean cuts.
Conclusion
3 Ingredient Key Lime Pie is the perfect example of how simple ingredients can create something incredibly delicious. Light, refreshing, and effortless to prepare, it’s a crowd-pleasing dessert that’s perfect for any occasion. Whether you make it the night before a party or just because, this pie is guaranteed to be a hit.
3 Ingredient Key Lime Pie is a creamy, tangy, and refreshing no-bake dessert made with sweetened condensed milk, key lime juice, and a pre-made graham cracker crust. It’s the perfect easy treat for summer or any occasion.
Ingredients
1 (14 oz) can sweetened condensed milk
1/2 cup key lime juice (fresh or bottled)
1 pre-made graham cracker crust (9-inch)
Instructions
In a mixing bowl, whisk together the sweetened condensed milk and key lime juice until fully combined and thickened.
Pour the mixture into the pre-made graham cracker crust and smooth the top with a spatula.
Refrigerate for at least 3–4 hours, or until the pie is fully set. For best results, chill overnight.
Slice and serve chilled. Optionally, top with whipped cream or lime zest before serving.
Notes
Use fresh key lime juice for a more intense citrus flavor.Top with whipped cream, lime zest, or crushed graham crackers for added texture and presentation.This pie can be made ahead and stored in the fridge or freezer.For a firmer texture, freeze the pie and thaw slightly before serving.Use mini crusts to make individual servings.
