Best Key Lime Pie

The Best Key Lime Pie recipe EVER! Tart and sweet and incredibly easy, this Key Lime Pie is sure to be a family favorite! A delicious graham cracker crust filled to the brim with an incredibly creamy filling that is just so quick to make! You won’t be able to stop at just one slice! 

Recipe by Trish - Mom On Timeout on February 1, 2019

Prep time: PT10M

Cook time: PT17M

Total time: PT27M

Rating

4.99 stars (529 reviews)

Keywords

key lime pie, pie

Ingredients

1 1/2 cups graham cracker crumbs
1/3 cup granulated sugar
6 tbsp butter (melted)
28 oz sweetened condensed milk
1/2 cup light sour cream
3/4 cup key lime juice
zest from 2 regular limes or 4 key limes
1 cup heavy whipping cream
1/2 cup powdered sugar
1 tsp vanilla extract

Cuisine

American

Steps

Graham cracker crust
- Preheat oven to 375F.
- Mix graham cracker crumbs, sugar, and butter in a small bowl. Press the crumb mixture into an 8" - 9.5" pie pan. Bake for 7 minutes. Cool for at least 30 minutes.
Key Lime Filling
- Preheat oven to 350F
- Whisk together sweetened condensed milk, sour cream, lime juice, and lime zest in a medium bowl. Pour into prepared graham cracker crust and bake for 10 minutes.
- Let pie cool slightly before chilling. Chill for at least 3 hours.
Whipped Cream Topping
- Beat heavy cream and sugar together in a mixer until stiff peaks form. Beat in vanilla. Spread or pipe the whipped cream on top of the cooled pie. Top with additional lime zest if desired.

Nutitrion

Serving Size: 1 serving
Calories: 517 kcal
Carbohydrates: 66 g
Protein: 8 g
Fat: 25 g
Saturated Fat: 15 g
Cholesterol: 81 mg
Sodium: 262 mg
Sugar: 58 g

Reviews

Jesse Lynn on 2026-06-29 (5 stars):
This is my favorite key lime pie recipe!!! It is always a hit at work/friend events and has been raved about by many. I have been curious if I could make this recipe work as mini pies/tarts. Following the same mix ratio, eparating it into mini pie pans, and just reducing the bake time. Have you tried making this a mini version? If so, I'd love to know the cook times you used.
Wendy on 2026-06-29 (5 stars):
Good
Tammy Cohee on 2026-06-28 (5 stars):
Great recipe! Just made it the 2nd time and it's a keeper. Easy and simple ingredients. Saw a similar one with Greek yogurt instead of sour cream so may try that next time. Thank you!
Pl on 2026-06-28 (5 stars):
I made this for a dinner party. Everyone loved it. A definite repeat recipe
Teresa Turpin on 2026-06-20 (5 stars):
I made the crust with ginger biscuits instead of digestives ( your graham crackers ) not authentic but it was absolutely scrummy !!
Katie VanVliet on 2026-06-16 (5 stars):
This was the absolute best AND easiest key lime pie recipe I've ever made. I juiced a whole bag of key limes, which was time consuming but SO worth it. even my boyfriend who absolutely despises key lime flavor devoured it. Thank you so much!!
Bob on 2026-06-15 (5 stars):
The recipe calls for light sour cream, would full fat sour cream work as well?
Sylvia SB on 2026-06-15 (5 stars):
This is one of the best recipes for the summer! This is the second time I have made this Key Lime pie. So easy! The taste takes me back to Key West with every bite. Rave reviews by family and friends. I just need to keep ordering key lime juice from the Keys. Just wondering- could greek yogurt be substituted for sour cream? Any thoughts?