Meta Info
Servings: 8
Total Time: 1 hour 20 minutes (including chilling)
Difficulty: Easy
Calories per Serving: ~360 kcal
Macros (approx.): Protein 8g | Carbs 42g | Fat 18g | Fiber 1g
Intro
If you love desserts that are creamy, refreshing, and perfectly balanced between sweet and tangy, this high-protein key lime pie is going to be your new favorite. It has that classic silky texture with a bright citrus flavor that feels light while still completely satisfying.
This easy homemade dessert recipe comes together with minimal ingredients, making it perfect for gatherings, summer weekends, or anytime you want something simple but impressive. The rich filling paired with the buttery graham cracker crust creates the perfect contrast in every bite.
What makes this pie stand out is how refreshing it feels straight from the fridge. Cold, creamy, and packed with fresh lime flavor, it’s one of those desserts people always come back for a second slice of.
Look at the Recipe
- Smooth, creamy filling with fresh lime flavor
- Sweet graham cracker crust with buttery crunch
- Easy make-ahead dessert perfect served chilled
Ingredients Needed
- 3 cups sweetened condensed milk
- 3/4 cup key lime juice
- 1/2 cup sour cream
- 1 tablespoon grated lime zest
- 1 prepared 9-inch graham cracker crust
Optional Garnish:
- Lime slices
- Whipped cream
How to Make Our High-Protein Key Lime Pie
Step 1: Preheat the Oven
Preheat oven to 350°F (175°C).
Step 2: Make the Filling
In a large bowl, mix sweetened condensed milk, key lime juice, sour cream, and lime zest until smooth and creamy.
Step 3: Fill the Crust
Pour the mixture into the prepared graham cracker crust and smooth the top evenly.
Step 4: Bake Briefly
Place pie on a baking sheet and bake for 5–8 minutes.
The filling should look set around the edges but still slightly wobbly in the center.
Step 5: Cool Completely
Transfer pie to a wire rack and let cool.
Step 6: Chill Before Serving
Refrigerate for at least 1 hour until fully chilled and firm.
Step 7: Garnish and Serve
Top with lime slices or whipped cream if desired, then serve cold.
Storage & Serving Suggestions
- Store covered in the refrigerator for up to 3 days
- Serve chilled for the best texture and flavor
- Freeze for up to 3 months without toppings
- Thaw overnight in the fridge before serving
Tips & FAQs
Can I use regular lime juice instead of key lime juice?
Yes, though key lime juice gives the most authentic flavor.
How do I make this higher in protein?
Add Greek yogurt in place of some sour cream or top with protein whipped cream.
Can I make this ahead of time?
Absolutely. It’s even better after chilling overnight.
Why is my filling still soft?
The pie firms up as it chills in the refrigerator.
Can I use a homemade crust?
Yes, homemade graham cracker crust works beautifully.
Final Thoughts
This high-protein key lime pie is cool, creamy, and packed with fresh citrus flavor in every bite. It’s the kind of dessert that feels both nostalgic and refreshing at the same time—simple enough for everyday cravings but special enough to serve for guests.
