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Grandma’s Lemon Meringue Pie

Posted on October 24, 2025

This timeless pie features a bright, tart lemon custard topped with a cloud of lightly sweetened meringue. Every bite is the perfect mix of creamy, tangy, and sweet — pure nostalgia in dessert form!


⏱ Prep Time: 25 minutes

⏲ Cook Time: 25 minutes

❄️ Chill Time: 2 hours

👩‍🍳 Servings: 8


🧂 Ingredients

For the Pie Crust:

  • 1 (9-inch) pre-baked pie crust (homemade or store-bought)

For the Lemon Filling:

  • 1 cup granulated sugar
  • 2 tbsp all-purpose flour
  • 3 tbsp cornstarch
  • ¼ tsp salt
  • 1½ cups water
  • 2 lemons, juiced and zested
  • 2 tbsp butter
  • 4 egg yolks, beaten

For the Meringue:

  • 4 egg whites (room temperature)
  • 6 tbsp granulated sugar
  • ½ tsp cream of tartar (optional, helps stabilize)
  • ½ tsp vanilla extract

🍳 Instructions

1. Make the Lemon Filling

  1. In a medium saucepan, whisk together sugar, flour, cornstarch, and salt.
  2. Gradually stir in water, lemon juice, and lemon zest.
  3. Cook over medium-high heat, stirring constantly, until mixture thickens and begins to bubble.
  4. Reduce heat to low. Whisk in butter.
  5. In a small bowl, whisk egg yolks. Slowly add about ½ cup of the hot lemon mixture into yolks to temper them.
  6. Pour yolk mixture back into saucepan and cook for another 2 minutes, stirring constantly.
  7. Remove from heat and pour into the pre-baked pie shell.

2. Make the Meringue

  1. In a clean bowl, beat egg whites (and cream of tartar if using) until soft peaks form.
  2. Gradually add sugar, 1 tablespoon at a time, beating until stiff glossy peaks form.
  3. Beat in vanilla.

3. Assemble & Bake

  1. Spread meringue over hot lemon filling, sealing the edges to the crust (this prevents shrinking).
  2. Bake at 350°F (175°C) for 12–15 minutes, or until meringue is golden brown.
  3. Cool at room temperature for 1 hour, then refrigerate for at least 2 hours before slicing.

🍽 Nutrition (per slice)

Approximate values:

  • Calories: 320
  • Fat: 10g
  • Carbs: 52g
  • Protein: 4g

💡 Tips & Tricks

  • Always spread meringue on hot filling — it helps it stick and prevents weeping.
  • For extra tang, add an extra tablespoon of lemon zest.
  • Use a glass or ceramic pie dish for even baking.
  • Store leftovers in the fridge for up to 3 days (uncovered or loosely tented with foil).

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