
If you are looking for a refreshing and high-protein treat that feels like dessert but packs in healthy ingredients, this Key Lime Pie Yogurt Bark is my go-to each summer. It is creamy yet crunchy, tangy from real key lime juice, and makes a perfect frozen snack for kids and adults alike. Everything comes together without cooking so it is a breeze to throw together on hot days.
I started making this when my kid grew obsessed with key lime pie but I wanted something lighter for everyday snacks. Ever since that first batch disappeared overnight I keep it in the freezer all summer.
Ingredients
- Greek yogurt: for creaminess and protein aim for plain nonfat or low fat for higher protein or use your favorite dairy free brand
- Key lime juice: for the signature tart flavor use fresh key limes if possible and strain for best texture
- Powdered swerve or honey: as a sweetener adjust to taste or swap for another favorite
- Vanilla extract: for a hint of warmth and rounding out the tang
- Lime zest: for brightness and extra citrus zing wash limes well before zesting
- Crushed gluten free graham crackers: for crunch and that pie crust feel check for freshness and crispness in your crackers
- Toasted unsweetened coconut: for texture and a tropical note toast until lightly golden but not burnt
- Vanilla protein powder: for an extra boost of protein can use regular or plant based for your needs
Step-by-Step Instructions
- Mix the Yogurt Base:
- Combine the Greek yogurt key lime juice protein powder lime juice lime zest sweetener and vanilla extract in a medium mixing bowl. Whisk very well until the mixture is completely smooth and the protein powder is fully dissolved.
- Prepare the Sheet Pan:
- Line a baking sheet pan with parchment paper or a silicone baking mat making sure the surface is covered edge to edge to prevent sticking later.
- Spread the Yogurt Mixture:
- Pour the yogurt base onto the prepared baking sheet. Use a spatula to spread it evenly into a thin layer about one quarter inch thick so it freezes properly and holds crunchy toppings.
- Add Toppings:
- Sprinkle the crushed graham crackers toasted coconut and extra lime zest evenly across the top of the yogurt mixture. Press them down lightly with your hands or a spatula so they adhere.
- Freeze Until Firm:
- Place the baking sheet flat in your freezer. Let it freeze for at least two to three hours or until completely solid to the touch.
- Break Into Pieces:
- Remove from the freezer and use the edges of the parchment to lift the yogurt bark out of the pan. Quickly break into pieces with your hands or gently score and snap with a knife for tidy bark squares.
- Store or Serve:
- Serve immediately or pack the bark pieces in a single layer or stacked with parchment in between in an airtight container. Return to the freezer for up to two weeks.

I am especially partial to the toasted coconut on top. It always makes me think of baking coconut macaroons with my mom and the moment I taste that toasty flavor it feels like summer vacation again.
Storage Tips
Once your bark is frozen solid break it up and transfer to an airtight container. Make sure to separate layers with parchment paper so nothing sticks together. I like to freeze individual portions for quick snacks or school lunches and it will keep perfectly for two weeks.
Ingredient Substitutions
You can easily make this dairy free by using coconut yogurt or another plant based yogurt. If you do not have powdered swerve regular powdered sugar or honey can be swapped in a pinch though it may affect the protein count slightly. Any crispy gluten free cookie works here if you do not have graham crackers.

Serving Suggestions
Serve straight from the freezer as an afternoon pick me up or as a healthy dessert that kids will devour. For parties place the bark pieces on a platter with wedges of fresh limes and extra coconut. If using as a post workout snack try pairing with a handful of berries for color and extra nutrition.
Sweet Tradition
Key lime pie always brings to mind summer days by the beach and family picnics. Making this bark is my way of keeping that tradition going with less sugar and lots more protein so we can enjoy the flavor any time not just on special occasions.
Recipe FAQs
- → Can I use regular limes instead of key limes?
Yes, regular limes can be used in place of key limes if key limes are unavailable. The flavor will still be tangy and delicious.
- → How do I prevent the bark from sticking together when storing?
Store the bark in a single layer or separate layers with parchment paper in an airtight container to prevent sticking.
- → Can I make this dairy-free?
Absolutely. Substitute plain dairy-free yogurt for the Greek yogurt and use a plant-based protein powder for a fully dairy-free version.
- → How long will the yogurt bark keep in the freezer?
The bark stays fresh for up to 2 weeks if stored properly in the freezer in an airtight container.
- → Are there alternatives to graham crackers for the topping?
Yes. Try using crushed digestive biscuits, gluten-free cookies, or omit them for a nut or seed topping.
- → What kind of sweetener works best?
Powdered swerve or honey both work well. Adjust to taste, or use your preferred powdered or liquid sweetener.