Vegan Key Lime Pie Bars
Vegan Key Lime Pie Bars are a delightful twist on a classic dessert, capturing that beloved tartness of key lime in a creamy, dairy-free form. Picture a sweet and buttery Biscoff crust, perfectly balancing the zesty lime filling that melts in your mouth. Each bite is a refreshing burst of flavor that screams summer and sunshine, making these bars a perfect treat for any occasion. Whether you’re hosting a summer barbecue, planning a picnic, or just satisfying a sweet tooth, these Vegan Key Lime Pie Bars are sure to be a crowd-pleaser.
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I first stumbled upon an inspiration to create these bars while preparing for a family gathering. While everyone else seemed busy with cakes and cookies, I craved something light and tangy. That’s when the idea of Vegan Key Lime Pie Bars struck me, merging the nostalgic flavors I cherished into a vegan-friendly version. Now, every time I make them, they always vanish within minutes, leaving everyone clamoring for the recipe. Trust me, once you try these, they might just take center stage at your next dessert spread!
Why You’ll Love This Recipe
- Simple & Quick: With minimal prep and chill time, you can whip these up in just a few hours.
- Irresistible Flavor: The combination of tart lime and a rich, creamy filling will tickle your taste buds.
- Eye-Catching Appeal: The vibrant lime green filling against a golden crust makes for a stunning presentation.
- Flexible Serving: Perfect for summer barbecues, birthday parties, or any time you fancy a sweet treat.
- Diet-Friendly Options: Completely vegan and can be made gluten-free with the right cookie choice.
Ingredients You’ll Need
- 1 1/2 cups Biscoff cookie crumbs or honey-free graham crackers: These form the buttery crust that complements the tart filling. If you’re gluten-free, opt for a gluten-free graham cracker alternative.
- 3 tablespoons granulated sugar: Sweetens the crust just enough to elevate the flavors without overwhelming them.
- 6 tablespoons vegan butter, melted: This keeps the crust together and adds a rich texture. You can substitute coconut oil if preferred.
- 1 (11.25 ounce) can coconut or oat sweetened condensed milk or homemade: Provides that creamy consistency typical of key lime pie. If you want to make it from scratch, be sure to use a reliable recipe for homemade condensed milk.
- 10.8 ounces Mori Nu silken tofu, drained: This serves as the silky base for our filling, giving it structure and creaminess. If you can’t find Mori Nu, any silken tofu will work.
- 1 cup granulated sugar: Adds sweetness to balance the tartness of the lime juice.
- 3 tablespoons lime zest: Brings out that delicious key lime flavor and adds aroma; fresh zest is always better for intensity.
- 2/3 cup fresh lime juice: Ideally from key limes for an authentic tang. If unavailable, regular limes can be used.
- 4 tablespoons cornstarch: Acts as a thickening agent for the filling, ensuring it sets properly.
How to Make Vegan Key Lime Pie Bars
Prepare Biscoff Crust: Preheat your oven to 350 degrees F. In a medium bowl, combine the Biscoff cookie crumbs, 3 tablespoons of granulated sugar, and melted vegan butter. Stir until the mixture resembles moist crumbs. Press this mixture firmly into a parchment-lined 8-inch square baking pan. Bake for about 10 minutes until slightly golden, then remove from the oven and set aside to cool.
Make the Key Lime Filling: In a blender or food processor, combine the sweetened condensed milk, drained silken tofu, 1 cup of granulated sugar, lime zest, lime juice, and cornstarch. Blend the mixture until smooth. Transfer this creamy concoction to a medium saucepan and bring it to a boil over medium-high heat. Keep whisking until the mixture thickens, then remove it from the heat.
Pour Filling on Crust and Set: Carefully pour the lime filling over the cooled crust, spreading it evenly. Allow it to cool completely at room temperature for about 30 minutes, then refrigerate for a minimum of 3 hours to let it set.
Serve: After chilling, the bars should be firm and ready to serve. For an extra touch, add a dollop of vegan whipped cream on top right before serving, and sprinkle a little more lime zest for a pop of color.
Storing & Reheating
Store any leftover Vegan Key Lime Pie Bars in an airtight container in the refrigerator for up to a week. If you want to keep them longer, freeze them for up to 3 months. Just wrap each bar individually in plastic wrap and place them in a freezer bag. When you want to enjoy a treat, thaw them in the refrigerator overnight. The texture will still be deliciously creamy, but to refresh the flavor, you can add a dollop of whipped cream or a sprinkle of lime zest before enjoying.
Chef’s Helpful Tips
- Make sure to blend the filling really well to avoid any tofu lumps – smooth filling is key!
- If using key limes, adjust the sweetness to taste, as they’re often more tart than regular limes.
- Keep an eye on the crust while baking; overbaking can make it too hard instead of a tender base.
- For a fun twist, try including some fresh fruit slices or a raspberry sauce on top.
As you prepare your Vegan Key Lime Pie Bars, feel free to experiment with the ingredients and ratios! The balance of sweet and tart is what makes this recipe shine, so adjust it based on your personal preferences. You can even serve them with different toppings for a variation in flavor.

Recipe FAQs
Can I make these bars gluten-free?
Absolutely! Simply replace the Biscoff cookie crumbs with gluten-free graham cracker crumbs or another cookie alternative that fits your diet. The taste will remain delicious, making them perfect for everyone!
How can I tell when the bars are set?
Your Vegan Key Lime Pie Bars will have a firmer texture after chilling for about 3 hours in the refrigerator. If they are still slightly jiggly in the center, give them more time to set.
Can I use regular limes instead of key limes?
Yes, you can use regular limes if key limes are hard to find. The flavor will be slightly different but still perfectly tasty!
How do I serve leftovers?
Simply store the bars in an airtight container in the fridge. They taste just as good the next day, making for a lovely snack or dessert after a meal!
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📖 Recipe Card

Vegan Key Lime Pie Bars
- Prep Time: 20 minutes
- Cook Time: 10 minutes
- Total Time: 30 minutes
- Yield: 12 servings 1x
- Category: Desserts
- Method: Baking
- Cuisine: Vegan
Description
These Vegan Key Lime Pie Bars offer a delightful blend of creamy filling and a crispy crust. With simple ingredients and easy preparation, they are perfect for a quick dessert or as a refreshing treat. Enjoy the irresistible flavors topped with vegan whipped cream for an extra touch!
Ingredients
- 1 1/2 cups Biscoff cookie crumbs or honey-free graham crackers
- 3 tablespoons granulated sugar
- 6 tablespoons vegan butter, melted
- 1 (11.25 ounce) can coconut or oat sweetened condensed milk or homemade
- 10.8 ounces Mori Nu silken tofu, drained
- 1 cup granulated sugar
- 3 tablespoons lime zest
- 2/3 cup fresh lime juice from key limes if possible
- 4 tablespoons cornstarch
Instructions
- Preheat the oven to 350 degrees F.
- In a medium bowl, combine Biscoff crumbs, 3 tablespoons of sugar, and melted vegan butter until it resembles moist crumbs.
- Press the mixture into a parchment-lined 8-inch square baking pan and bake for 10 minutes. Set aside to cool.
- In a blender, add the sweetened condensed milk, silken tofu, 1 cup of sugar, lime zest, lime juice, and cornstarch. Blend until smooth.
- Transfer the mixture to a medium saucepan over medium-high heat and whisk continuously until it thickens and reaches a boil.
- Remove from heat and pour the filling over the cooled crust. Allow it to cool at room temperature for about 30 minutes, then refrigerate for a minimum of 3 hours before serving.
- Once set, cut into bars and serve with vegan whipped cream and an extra sprinkle of lime zest.
Notes
For a creamier texture, ensure the silken tofu is well-drained before blending.
Using fresh key limes will enhance the flavor but regular limes work well too.
These bars can also be made a day ahead for convenience.
Nutrition
- Serving Size: 1 bar
- Calories: 233
- Sugar: 18g
- Sodium: 200mg
- Fat: 9g
- Saturated Fat: 3g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 34g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 0mg
