This creamy and zesty vegan key lime pie is full of fresh key lime juice, only 7 ingredients, and naturally gluten free, eggless, and refined sugar free. The perfect sweet and tart no bake dessert for the summer!

Creamy No Bake Vegan Key Lime Pie (Gluten Free!)

Get ready for the best vegan key lime pie you’ve ever had.

This no bake key lime pie is incredibly refreshing, deliciously sweet, and yet doesn’t weigh you down. You just feel so uplifted by the beautiful and light flavors of coconut and lime together! Plus, it’s extraordinarily simple to make, gluten free, and refined sugar free!

Where does key lime pie come from?

Key lime pie actually comes from the United States! Its origins are said to come from Key West, Florida. Some speculate that the recipe first came about in the 1800’s, but it wasn’t written down and shared widely until the 1930’s.

What is the difference between limes and key limes?

To make key lime pie, it’s always best to use key limes, instead of just limes. However, key limes are not available everywhere (key limes actually come from the Florida Keys!). Key limes are typically more aromatic and have more seeds than regular limes.

You can use regular limes for a key lime pie if you can’t find key limes. This no bake key lime pie will still be delicious!

sliced vegan key lime pie

Vegan Key Lime Pie Ingredients

We tried to keep this vegan key lime pie as close to the original as possible, as we wanted to pay homage to the classic Key West treat.

However, there are some twists to this recipe, including the fact that this key lime pie is no bake, dairy free, eggless, and gluten free.

For this vegan key lime pie, you’ll need:

  • Rolled Oats: you can use sprouted oats or just rolled oats here. If you need gluten free, please be sure to check that the oats are gluten free certified.
  • Dates: make sure the dates are pitted before beginning.
  • Vegan butter or coconut oil: you can use either here. I personally prefer the vegan butter over the coconut oil, but that’s just me!
  • Coconut milk: I used regular coconut milk from a can here. We need the creaminess of full fat coconut milk for a super lush and fluffy tart.
  • Sweetened condensed coconut milk: this pays homage to the traditional key lime pie recipe, which uses sweetened condensed milk. I have some notes if you can’t find it in stores, so be sure to read the full recipe card below.
  • Key limes: these should be available in most grocery stores. However, Persian limes are the next best option, followed by regular limes.
  • Arrowroot: arrowroot is sometimes labelled arrowroot starch or arrowroot powder. They’re the same thing, so don’t worry if you only see one in stores! You can also use cornstarch instead. Just make sure that either way, the powder has been stored properly and is fresh for use in this no bake recipe.

How to make a no bake key lime pie

The beauty about this no bake dairy free key lime pie is that it really doesn’t require much hands-on time, and you don’t have to constantly check the oven to make sure it’s done.

We’re going to go over the basics of how to make this vegan key lime pie, as well as provide a few key tips and tricks. However, the full written instructions and measurements for this no bake pie are found down below in the recipe card.

no bake vegan key lime ie

Part 1: The No Bake Oat Crust

This is one of my favorite tart and pie crusts. You can make this key lime pie in either a 9″ tart pan or in a 8-9″ pie dish. Either works. I know that technically if you use a tart pan, this is considered a key lime tart, and not a pie. But really, they’re the same thing for this recipe 🙂

Now for the crust: your three ingredient oat crust comes together in just 5 minutes. Simply pulse the oats together, then add in the dates and the vegan butter, and pulse again. Press the dough into the tart pan and pop the crust into the freezer to chill.

A note about the dates: we’ll need to soften the dates for this oat crust. Contrary to some other recipes on the web, you actually don’t need to soak the dates for hours and hours. Simply use boiling water and soak them for 10 minutes. The only caveat is that you’ll want to slightly cool them before using in the crust. This is because we still need the vegan butter to be cold and hot dates (lol) will melt the butter.

If you want to add some more flavor to the crust, you can add in 1 tsp of vanilla extract. I also use salted vegan butter (Flora Plant Butter to be specific), but if you’re using coconut oil, add in 1/4 tsp sea salt.

Part 2: The Vegan Key Lime Pie Filling

Once the crust is made, it’s time to make the key lime pie filling.

The difference between this vegan key lime pie and others is that we’re using sweetened condensed coconut milk. It’s actually closer to the original classic key lime pie, which uses dairy condensed milk.

There is only one brand that I’m aware of that sells this, and it’s Nature’s Charm. However, they ARE an international company and should be available at almost every grocery store. The sweetened condensed coconut milk not only reduces the amount of ingredients we need (aka no sweetener), but it also provides even more thickness to the filling.

If you can’t find sweetened condensed coconut milk: you can use more coconut milk and maple syrup. I’ve given the measurements for that in the notes section of the recipe card below.

To make the filling, you’ll simply whisk together the coconut milks, lime juice and zest, and vanilla. Then add in the arrowroot starch and vigorously whisk. It will feel much like an arm workout here, but this is crucial, as we don’t want the arrowroot starch to clump. Then continue whisking (not as vigorously!) until the mixture thickens (about 7 minutes). Pour the filling into the crust and chill until set (about 4-5 hours!).

A note about the arrowroot starch: if you don’t have arrowroot on hand, you can use cornstarch in its place. Also note that arrowroot starch is also sometimes called arrowroot powder. The two are the same (just different names for various brands).

hand piping coconut whipped cream onto key lime pie

Is this recipe nut free?

Yes, this no bake key lime pie is also naturally nut free! As long as you’re using a nut free vegan butter, such as Flora Plant Butter, all other ingredients are nut free and allergy friendly.

How to serve key lime pie:

Because this vegan key lime pie is coconut based, I thought the perfect topping would be homemade vegan coconut whipped cream. Coconut and limes just go perfectly together, and the whipped cream is incredibly easy to make.

The perfect treat on a super hot summer day, honestly!

slice of no bake key lime pie

I hope you absolutely love this vegan key lime pie as much as I do! It truly hits the spot and is so refreshing for the summer.

If you make this no bake key lime pie, be sure to leave a comment down below, as well as a rating ⭐️⭐️⭐️⭐️⭐️ so that others may find the recipe!

As always, I absolutely love to see your beautiful creations on Instagram and Pinterest, so be sure to tag me there!

Happy no baking!

More no bake vegan desserts you’ll love:

Raw Vegan Chocolate Cheesecake

Easy Vegan Truffles

Paleo Vegan Cookie Dough Truffles

Want to save this recipe for later? Add it to your favorite recipe board on Pinterest!

no bake key lime pie
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Creamy No Bake Vegan Key Lime Pie (Gluten Free!)

Vegan Key Lime Pie {Gluten Free}

  • Author: thebananadiaries
  • Prep Time: 20
  • Cook Time: 240
  • Total Time: 4 hours 20 minutes
  • Yield: 12 1x
  • Category: Dessert
  • Method: No Bake
  • Cuisine: American
  • Diet: Vegan


This creamy and zesty vegan key lime pie is full of fresh key lime juice, only 7 ingredients, and naturally gluten free, eggless, and refined sugar free. The perfect sweet and tart no bake dessert for the summer!



No bake oat crust:

  • 2 1/2 cups ( 225 grams) rolled oats, gluten free as needed
  • 7 medjool dates, soaked in boiling water for 10 minutes
  • 1/2 cup (113 grams) vegan butter or coconut oil, cold + cubed

Vegan Key Lime Pie Filling:

  • 320 grams condensed coconut milk*
  • 280 grams (1 1/2 cup) coconut milk
  • juice from 3 small key limes
  • zest from 1 key lime
  • 1 tsp vanilla
  • 5 tbsp arrowroot starch
  • 1 batch vegan coconut whipped cream


  1. Prepare a 9″ tart pan or pie dish first. Lightly grease the dish with olive oil (for easier removal than coconut oil) and if using a tart pan, line the bottom of the pan with parchment paper. Prepare and measure out all ingredients before beginning. Make sure that the dates have been soaked, and slice them into quarter pieces. This will be easier on the food processor for blending purposes.
  2. Make the oat crust: in a large food processor, pulse the oats until they reach almost a fine flour. Then add in the dates and cubed vegan butter to the food processor and pulse again until the mixture reaches a sticky but thick dough, about 1-2 minutes. Press the dough into the tart pan or dish using a spoon or clean hands, and work the dough up the sides of the dish. Place the tart pan into the freezer while you prepare the filling.
  3. Make the key lime pie filling: in a large saucepan, whisk together the condensed coconut milk, coconut milk, lime juice and zest, and vanilla. Bring the saucepan to a boil, then reduce the heat to medium-low. Sift in the arrowroot starch and whisk vigorously. This will prevent the arrowroot from clumping. Continue to whisk the mixture for about 7-10 minutes, until it thickens. Then pour the coconut mixture into prepared pie crust. Carefully place the pie dish into the freezer to set for 4 hours. 
  4. Once the key lime pie is set, you can prepare the coconut whipped cream if you’d like for a topping! Follow the instructions in the post. Then top with lime wedges and serve! Store any leftovers in an airtight container in the fridge for up to 5 days. 


Oats: you can use sprouted oats or rolled oats here. I do not recommend using steel cut outs. Use gluten free certified as needed.

Arrowroot starch: you can swap in an equal amount of cornstarch if you’d like to use that instead.

Sweetened condensed coconut milk: the brand I get, which I believe is the only one on the market and is intonational, is Nature’s Charm. If that is unavailable to you in your grocery store, then you can use 200 grams more of coconut milk and 120 grams of maple syrup.

Keywords: vegan key lime pie, dairy free key lime pie, easy key lime pie, no bake key lime pie