4-Ingredient No-Bake Key Lime Pie

No bake key lime pie

The Spruce

  • Total: 10 mins
  • Prep: 10 mins
  • Cook: 0 mins
  • Chilling Time: 8 hrs
  • Yield: 8 Servings
Nutritional Guidelines (per serving)
202 Calories
7g Fat
28g Carbs
7g Protein
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Nutrition Facts
Servings: 8 Servings
Amount per serving
Calories 202
% Daily Value*
Total Fat 7g 9%
Saturated Fat 4g 18%
Cholesterol 121mg 40%
Sodium 103mg 4%
Total Carbohydrate 28g 10%
Dietary Fiber 0g 1%
Protein 7g
Calcium 159mg 12%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)

Summertime desserts have a few criteria: they have to be easy, because no one wants to work extra hard during vacation season. They need to be refreshing, satisfying your sweet tooth without weighing you down or heating you up. And they simply can't require turning on the oven.

This easy, no-bake key lime pie is all of these things and more. It's made with only four ingredients: egg yolks, sweetened condensed milk, lime juice, and a premade graham cracker crust. How can a pie with eggs be no-bake, you ask? As the pie chills in the refrigerator, the acid in the lime juice coagulates the egg proteins, "cooking" them and causing the filling to set up. If you find using raw eggs unnerving or you are pregnant, use pasteurized egg yolks.

Key limes (also known as Mexican or West Indies limes) are a small and potent variety of lime with a distinct zesty flavor, and are best for this recipe. Unfortunately, they can sometimes be difficult to find. If you can't get real key limes (or key lime juice, which you can sometimes find bottled or frozen) it's fine to use regular limes. Fresh juice is best, and adding some finely grated zest to this recipe will add even more lime flavor.

Ingredients

  • 4 egg yolks (pasteurized, if desired)
  • 1 (14-ounce) can sweetened condensed milk
  • 5 ounces lime juice (key lime is preferred)
  • 1 graham cracker pie shell (store-bought or homemade)
  • Optional: whipped cream (for topping)

Steps to Make It

  1. Gather the ingredients.

    No bake key lime pie
    The Spruce
  2. Beat the egg yolks with a whisk.

    Beat eggs
    The Spruce
  3. Stir in the condensed milk until well blended.

    Stir in condensed milk
    The Spruce
  4. Stir in the lime juice and mix until completely incorporated.

    Stir in lime juice
    The Spruce
  5. Pour the filling into your pie shell and refrigerate overnight.

    Pouring tart within crust
    The Spruce
  6. Serve topped with whipped cream (if desired).

    Serve topped with whipped cream
    The Spruce
  7. The pie should be kept well chilled until serving. Store leftover pie, covered, in the refrigerator for up to 2 days.

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