Key Lime Pie Popsicles

These creamy key lime pie popsicles taste like a slice of your favorite key lime pie! Made from healthy ingredients, they’re the perfect summer treat! (Gluten-Free & Vegan-Friendly)

All summer long, we’re making one batch of popsicles after another–we can’t get enough! When it comes to homemade popsicles, I love that you can easily come up with a wide variety–light, fruity popsicles, creamy ice-cream like popsicles, and everything in between. Today’s recipe is one of my all-time favorites.

These healthy key lime pie popsicles have all the favor I love in classic key lime pie (a fresh, sweet-tart filling + graham cracker crust), but here we’ll turn it into a creamy key lime pie smoothie and swirl in graham cracker “crust” crumbles. The end result is DELICIOUS.

We LOVE this refreshing summer treat so much on a hot summer day! And, just like our other homemade popsicle recipes, these key lime pie popsicles are SUPER easy to make.

Here’s what you’ll need to get started on this tangy lime popsicle recipe…

Start With Simple Ingredients

I love that these key lime pie ice pops use simple, fresh ingredients! There’s nothing fussy about their preparation–the hardest part is waiting for them to freeze!

• Plain Yogurt (Dairy-Free or Dairy). Rather than using sweetened condensed milk like you would for a pie, we’ll start these key lime pie popsicles with a base of plain Greek yogurt. Dairy-free and dairy yogurts all work for this recipe.
• Coconut Milk. Next up is some coconut milk. I recommend full-fat canned coconut milk here to ensure that your lime popsicles have a velvety, creamy texture. If you use low-fat/lite or the chilled coconut milks that come in cartons, your pops will be more icy than creamy. For an extra-rich pop, you can use coconut cream, but my favorite combination is full fat coconut milk. 
• Fresh Lime Juice. I work a double dose of lime flavor into these lime popsicles, and that starts with fresh lime juice. Bottled lime juice will NOT work here, as it’ll add a sharp and bitter taste. Fresh only, please. Also, you can use regular limes or key limes. (I can only rarely find key limes where I live.)
• Honey or Agave. Just like with key lime pie, we want to strike the balance of sweet + tart. We’ll take the edge off the tartness of the lime juice with honey or agave. You can trust your tastebuds here, so if you want to start with less sweetener or need to add more, go for it!
• Lime Zest. Next is lime zest. You’ll get concentrated lime flavor from the natural oils in the peel here, which makes for the BEST flavor! I recommend a microplane zester for getting your lime zest. Remember not to get the white pith! You only want the green peel.
• Vanilla Extract. A splash of vanilla makes these almost taste like ice cream. I love it!
• Graham Crackers + Butter or Vegan Butter. For the graham cracker crumbs, you’ll crush up some graham crackers and mix them with butter or vegan butter. I LOVE this textural contrast SO MUCH. We’re gluten-free, so we use gluten-free graham crackers, like Pamela’s or Kinnikinnick. If you need gluten-free AND vegan graham crackers, we recommend Kinnikinnick or Nairns. You can also make your own!

How To Make Key Lime Popsicles, Step By Step

As always, you can find the full recipe with ingredient amounts, detailed instructions and tips in the printable recipe card below!

1. First, Make The Creamy Popsicle Mixture. In a blender, combine yogurt, coconut milk, lime juice, honey or agave, lime zest, and vanilla. Blend until smooth and the honey/agave is well incorporated. Taste and add additional sweetener, if needed. (It should be fairly tart & sweet to mimic the flavor of key lime pie.)
2. Then, Make The Graham Cracker Crumbs. Place the graham crackers in a large bowl and use the back of a cup to crush them into small (but not miniscule!) pieces. I like having a few larger pieces and some smaller pieces. You can also do this by placing the graham crackers in a bag and using a cup or a rolling pin to crush them. Add the melted butter to the crushed graham crackers and use a fork to coat the crumbs well with the butter. Little clumps will start to form.
3. Assemble The Popsicles. Fill each well of your popsicle mold halfway full with the smoothie mixture. Add 1 tsp. graham cracker crumbs to the popsicle mold. Swirl or poke the crumbs down with a popsicle stick a bit (if desired). Fill the popsicle mold almost all the way to the top, leaving about 1/4″ space. Add another teaspoon of graham cracker crumbs to the top. (If you have any additional graham crumbs, you can save them for garnish!)
4. Freeze Popsicles. Cover the popsicle mold with a lid or wrap tightly with foil and insert the popsicle sticks. Place on a level surface in the freezer and freeze at least 4-5 hours, or until completely solid. If desired, sprinkle additional lime zest or any leftover graham crumbs onto the popsicles for garnish & enjoy! Store frozen popsicles in an airtight freezer-safe bag for up to 2 weeks.

FAQ + Tips For The Best Key Lime Pie Popsicles

HOW TO GET POPSICLES OUT OF THE POPSICLE MOLD: Remove the lid and run each well of the popsicle mold under cold water (NOT hot water!) for a few seconds. Gently wiggle the popsicle stick side to side to help loosen the popsicle from the mold. (If it’s not budging, just run it under cold water for a few more seconds and try again)

CAN I USE REGULAR LIMES INSTEAD OF KEY LIMES? I basically always do, and most commercially-made key lime pies actually use traditional limes instead of key limes these days. I know that it’s technically just “lime pie popsicles” if I’m not using key limes, but I know not everyone has access to key limes. If you can find them, use them! If not, feel free to use traditional limes.

WHAT’S THE DIFFERENCE BETWEEN KEY LIMES & REGULAR LIMES? Learn more about the differences, similarities, and how to substitute them for each other here.

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