
This frozen yogurt is creamy and tangy with a bright key lime flavor. It’s perfect for cooling off on hot days and brings the essence of key lime pie without any baking. Light and refreshing, it requires just a few simple ingredients and minimal effort.
Why You'll Love This
I first made this on a scorching Florida afternoon, and it instantly became my go-to dessert when I want something cool but flavorful. The lime zest and juice really bring it alive, making it a refreshing indulgence every time.
Ingredients
- Low-fat plain yogurt choose creamy yogurt for the best texture
- Sweetened condensed milk fat-free keeps it light regular adds richness
- Pure vanilla extract adds a smooth sweet depth
- Key lime juice and zest the star for tart and tropical flavor substitute with regular limes if needed
- Optional toppings graham cracker crumbs add crunch fresh lime slices brighten each bite whipped cream adds softness
Step-by-Step Instructions
- Combine Ingredients:
- In a large bowl, whisk yogurt, condensed milk, vanilla, lime juice, and zest together until smooth and well blended.
- Freeze Mixture:
- Pour mixture into your ice cream maker and churn according to the manufacturer’s instructions until creamy and frozen.
- Alternative Freezing Method:
- Without an ice cream maker, beat mixture well then pour into a shallow dish. Freeze, stirring every 30 minutes until it reaches a creamy consistency.
- Serve or Store:
- Serve immediately for soft-serve texture or transfer to an airtight container and freeze until firmer. Let sit at room temperature 5 minutes before scooping if too hard.
- Add Toppings:
- Sprinkle with graham cracker crumbs, garnish with lime slices and whipped cream before serving for extra flavor and texture.
I love how key limes bring a floral and tropical note that regular limes just don’t have. It reminds me of summers spent in Florida with my family, where this dessert quickly became a favorite cooling treat.
Storage Tips
Store your frozen yogurt in an airtight container in the freezer. If it freezes too hard, let it sit out for a few minutes to soften before scooping. This helps maintain its creamy texture.
Ingredient Substitutions
If key limes are unavailable, regular Persian limes work perfectly fine and still provide plenty of citrus flavor. For a richer texture, you can swap low-fat yogurt for full-fat. Coconut condensed milk adds a lovely tropical twist as well.
Serving Suggestions
Serve this frozen yogurt with fresh lime slices and a sprinkle of graham cracker crumbs for crunch. It also pairs well with a drizzle of honey or a few white chocolate chips on top for a special touch.

Pro Tips

Commonly Asked Questions
- → Can regular limes be used instead of key limes?
Yes, regular Persian limes can substitute for key limes with a slightly different but still delicious citrus flavor.
- → Is an ice cream maker necessary to make this frozen yogurt?
No, you can make it without an ice cream maker by stirring the mixture in the freezer every 30 minutes until creamy.
- → What toppings work well with this frozen yogurt?
Graham cracker crumbs, fresh lime slices, and whipped cream enhance the texture and flavor perfectly.
- → How should I store leftover frozen yogurt?
Store it in an airtight container in the freezer for up to 3 months. Let sit at room temperature briefly before scooping.
- → Can I use Greek yogurt instead of regular yogurt?
Regular yogurt is preferred for a creamier, less chalky texture, but Greek yogurt can be used if desired.