Chocolate and Lime Tart
Sweet and refreshing? Yes, please! Here’s how to make the best chocolate and lime tart — vegan, healthy and super addictive, trust me!
This vegan chocolate and lime tart is a no-bake dessert built from a chocolate Oreo crust and a creamy, agar-set coconut-lime filling. It comes together in two simple steps, sets in the fridge, and delivers that addictive sweet-and-tart contrast that makes citrus desserts so good. If you love the cool, zingy character of a key lime pie but want it with a chocolate base, this is the one to make.
Chocolate and orange is a flavor combo loved by many, but have you ever considered chocolate and lime? If not, you should — it’s really delicious! 🙂 I actually got the idea for this amazing tart because of Prajiturela’s amazing and nation-famous lime tart (which I got to try during an Uber Eats campaign and I instantly fell in love), which I ‘veganized’ and combined with my key lime pie recipe. Fun fact: British sailors acquired the nickname “Limey” because of their citrus habit — I found this unexplainably cute. I like to think about this tart as one of those perfect summer desserts.
Why chocolate and lime work so well together
What makes this combination so great and exotic is, yet again, its contrast, which our taste buds love. Chocolate is so sweet and creamy that sometimes we need to add an opposing flavor to get the best of it. That’s why a pinch of salt works so well in any chocolate dessert, and that’s also why we love flavors such as salted caramel. The acidity from the lime juice and the brightness of the zest cut through the richness of the coconut cream and the chocolate crust, so the tart tastes balanced rather than heavy. Each bite stays interesting because the sweet and the sour keep playing off each other.
The ingredients you’ll need
This is a short ingredient list, so each one earns its place. A few notes to help you shop and prep:
- Oreos (filling removed): these become your crust. Scrape out the cream filling so you’re working with just the chocolate cookie, which grinds into clean, fine crumbs and presses more reliably. Most plain Oreos are accidentally vegan, but always check your local label.
- Vegan butter, melted: the binder that holds the crumbs together. Melt it fully so it coats every crumb evenly.
- Coconut cream and coconut water: the base of the filling. The cream brings richness and body; the coconut water loosens it to a pourable, settable consistency.
- Sugar or stevia powder: use sugar for a classic sweetness or stevia to keep it lighter. Either dissolves into the warm filling.
- Lime juice and zest: the star flavor. Fresh-squeezed juice and freshly grated zest give the brightest result. Add the zest right before serving so it stays fragrant.
- Agar-agar: a plant-based setting agent from seaweed. This is what turns the liquid filling into a sliceable, custard-like layer without any eggs or gelatin.
How to get the filling to set perfectly
The whole recipe hinges on the agar-agar, so treat that step with care. Agar will not activate just by stirring it into a cold liquid — it needs to be brought to a boil and held there briefly so it fully dissolves and hydrates. That’s why the instructions have you stir the coconut cream, coconut water, agar-agar, and sugar together in a pot and bring the mixture to a boil over medium heat, whisking constantly until everything is dissolved. If you skip the boil, the filling stays loose and never firms up.
One important detail: add the lime juice only after you turn off the heat. Acid can weaken agar’s gelling power if it boils with it, so stirring the juice in at the end protects the set while keeping the lime flavor fresh and bright. From there, pour the filling over the chilled crust and give it the full chill time — agar sets as it cools, so patience here is what gives you clean slices instead of a runny center.
Make-ahead and storage tips
This tart is a make-ahead dream. The crust needs 30 minutes in the fridge before filling, and the assembled tart needs at least 1.5 to 2 hours to set fully, so it’s the perfect dessert to prepare the night before. Keep it covered in the refrigerator and it holds its texture well for a few days. Because the filling is set with agar rather than gelatin, it stays firm and sliceable straight from the fridge. If you love this style of cool, set dessert, you’ll also enjoy my easy vegan key lime pie and the bright, citrusy vegan lemon bars, and you can browse more in my collection of vegan no-bake desserts.
What to serve with this tart
🙂 I love having this as an evening dessert option, for when that sweet tooth hits me hard. If you bring this to a party, I can guarantee it’s going to be the main star of the evening and everybody’s going to be impressed by it. To lean into the lime, a great option would be gin and tonic with a squeeze of lime, but you can also opt for a lime mojito, a Moscow Mule, or the classic Cuba Libre. If you’d rather keep things alcohol-free, a cool glass of one of these healthy coffee drinks rounds out the chocolate notes nicely. And if you want a second dessert on the table, an easy chocolate mousse makes a generous, crowd-pleasing pairing.
I hope you’re going to try out my chocolate and lime tart. If you do, I’d love to know how your filling set and whether you went team gin-and-tonic to go with it — give the recipe a star rating below and leave a comment with your tweaks so other readers can learn from them too!
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Chocolate and Lime Tart
Ingredients
Base:
- 2 cups Oreo filling removed
- 4-5 Tbsp vegan butter melted
Cream:
- 1 can coconut cream 400g
- 1 cup coconut water
- ½ cup sugar or stevia powder
- 2 Tbsp lime juice
- ½ tsp lime zest
- 2 tsp agar-agar
Instructions
- Add the Oreos to a food processor (with the filling removed) and grind into fine crumbs.
- Combine the Oreo crumbs with the melted vegan butter.
- Pour the mixture into the pie pan and press into an even layer on the bottom and up the sides.
- Refrigerate for 30 minutes.
- Stir together the coconut cream, coconut water, agar-agar, and sugar in a pot.
- Bring to a boil over medium heat.
- Keep whisking until the sugar and agar-agar are fully dissolved.
- Turn off the heat and stir in the lime juice.
- Pour it over the Oreo crust and place in the fridge for at least 1.5-2 hours.
- Sprinkle with lime zest before serving.
Notes
Frequently Asked Questions
Yes. The crust uses Oreo cookies (filling removed) bound with melted vegan butter, and the filling is made from coconut cream, coconut water, sugar or stevia, lime, and agar-agar. There are no eggs, dairy, or gelatin, so it is fully plant-based. Just double-check that your Oreos and vegan butter are dairy-free where you shop, since labels vary by country.
Agar-agar is a plant-based setting agent made from seaweed, and it is what turns the liquid coconut-lime mixture into a sliceable layer. It keeps the recipe vegan and sets firm even at room temperature. You could use gelatin, but that would make the tart non-vegan, and gelatin sets softer, so the texture and chilling behavior would change.
The most common reason is that the agar-agar was not brought to a full boil. Agar must boil and dissolve completely to activate, so stir it with the coconut cream, coconut water, and sugar and bring the mixture to a boil over medium heat, whisking until dissolved. Also add the lime juice only after turning off the heat, because boiling acid can weaken agar’s set.
Chill the Oreo crust for 30 minutes before filling it, then refrigerate the assembled tart for at least 1.5 to 2 hours so the agar filling firms up fully. Because agar sets as it cools, giving it the full chill time is what gives you clean slices instead of a runny center.
Absolutely, it is an ideal make-ahead dessert. Prepare it the night before, keep it covered in the refrigerator, and it holds its texture well for a few days. Since the filling is set with agar rather than gelatin, it stays firm and sliceable straight from the fridge.
The recipe is written for an Oreo crust, which gives that chocolate base that pairs with the lime. Remove the cream filling first so you grind only the chocolate cookie into fine crumbs, then mix with melted vegan butter and press into the pan. Any similar plant-based chocolate sandwich cookie would work the same way.
Turned out amazing, thanks a lot for the easy to follow recipe!