Rhubarb Pie Recipe Vegan: Tart and Tangy Crustless Delight

This vegan rhubarb pie recipe delivers all the tangy-sweet perfection of classic pie without a single drop of dairy or egg. The secret lies in a flaky coconut oil crust that holds its shape while baking, paired with a filling so vibrant it practically glows from the oven.

I developed this version after years of searching for a plant-based dessert that could stand up to traditional rhubarb pies—and trust me, it does.

The crust starts with a simple blend of flour, coconut oil, and ice water that comes together in minutes, then chills while you prep the filling.

Rhubarb's natural tartness shines when paired with just the right amount of maple syrup and cornstarch, creating a texture that's tender but holds its shape beautifully. The filling bakes until bubbly at the edges, with just enough caramelization to deepen the flavors.

What emerges from the oven is a pie with golden-brown edges, a filling that's perfectly set but still juicy, and a tangy-sweet balance that's impossible to resist. The best part?

It's completely vegan without sacrificing any of the traditional pie experience. Serve it warm with coconut whipped cream or a dollop of vanilla ice cream for the full indulgence.

This recipe works equally well for summer picnics or holiday gatherings—just make sure to let it cool slightly before slicing. The crust stays crisp while the filling remains tender, making every bite a perfect harmony of tart and sweet. Let's get baking!

Ingredients for rhubarb pie recipe vegan

Six ingredients for the crust, five for the filling—nothing fancy, just good stuff.

Rhubarb is the star, so grab the freshest stalks you can find—farmers markets usually have the best quality. Look for vibrant red or green stalks that are firm to the touch (the good stuff, not the wilted kind). Trader Joe's often carries organic rhubarb if you're in a pinch, but regular grocery stores work too. The maple syrup? Grade B has that deeper, caramelized flavor that pairs perfectly with rhubarb's tartness. If you can't find it, Grade A works, but you might want to add a pinch of cinnamon to compensate. The coconut oil for the crust should be unrefined—it's got a subtle coconut flavor that actually enhances the pie.

No coconut whipped cream for serving? Vanilla coconut yogurt works in a pinch, or even store-bought coconut ice cream. Short on maple syrup? Agave nectar at the same amount gets you close, but the flavor won't be identical. The flaxseed in the crust is optional but helps bind everything together—skip it if you're using a high-quality flour. For the filling, if your rhubarb is particularly tart, add an extra tablespoon of maple syrup. And trust me, don't skip the lemon juice—it balances the tartness beautifully. The cornstarch is non-negotiable though; it's what gives the filling that perfect set without being gummy.

The crust dough keeps for 3 days in the fridge, wrapped tightly in plastic. The filling can be prepped ahead and stored in the fridge for 1 day before baking. For best results, let the pie cool completely before slicing—it sets up beautifully overnight. Leftovers? They keep for 4 days in the fridge, but honestly, this pie disappears fast. If you're making it ahead for a gathering, bake it a day early and store it at room temperature in an airtight container. The flavors actually deepen overnight—worth the wait.

Step-by-step instructions for rhubarb pie recipe vegan

Let's create a luscious vegan rhubarb pie with a flaky crust and jammy filling.

In a medium bowl, combine the 1.5 cups all-purpose flour, 0.25 tsp salt, and 1 tbsp ground flaxseed. This base creates the perfect structure for our crust. I like to whisk these dry ingredients together first to ensure even distribution of the flaxseed, which helps bind everything without eggs.

Add the 0.75 cup coconut oil to the dry mixture and use a fork or your fingers to work it into the flour until it resembles coarse crumbs. The oil should be soft but not melted—if it's too hard, let it sit at room temperature for a few minutes. This step is crucial because cold oil won't incorporate properly, leading to a tough crust.

Pour in the 0.25 cup ice water all at once and stir vigorously with a fork until the mixture comes together into a shaggy dough. The ice water is key here—it keeps the dough from getting too warm and helps create that signature flaky texture. If the dough feels too dry, add 1 teaspoon more water; if it's too sticky, sprinkle in 1 tablespoon more flour. Shape the dough into a disk, wrap it in plastic wrap, and refrigerate for at least 30 minutes to firm up.

While the crust chills, prepare the rhubarb filling. In a large mixing bowl, combine the 4 cups chopped rhubarb stalks, 0.75 cup organic maple syrup, 2 tbsp lemon juice, 1 tsp vanilla extract, and 0.33 cup cornstarch. The cornstarch is essential—it thickens the filling beautifully without making it gummy. Stir gently but thoroughly to coat all the rhubarb pieces evenly.

Let the mixture sit for 10 minutes while you roll out the crust. This resting time allows the rhubarb to release some of its natural juices, which helps create a jammy, flavorful filling. The lemon juice brightens the tartness of the rhubarb, while the vanilla extract adds a subtle depth that balances the sweetness of the maple syrup.

On a lightly floured surface, roll out the chilled dough to a 12-inch circle—about 1/8-inch thick. This size fits a standard 9-inch pie dish with some overhang. Gently transfer the dough to the pie dish, pressing it lightly into the bottom and up the sides. The edges should be even, but don't worry if they're not perfect—this is a rustic pie, after all.

Trim any excess dough hanging over the edge, leaving about 1 inch of overhang. Fold the overhang under itself to create a neat rim, then crimp the edges with your fingers or a fork to seal. This technique helps prevent the crust from shrinking during baking. Place the assembled pie on a baking sheet lined with parchment paper to catch any drips.

Pour the rhubarb filling into the prepared crust, mounding it slightly in the center. The filling should come about 3/4 of the way up the sides of the crust—don't overfill, or it'll spill over during baking. Sprinkle the top of the filling with a pinch of salt to enhance its flavor.

Bake the pie in a preheated 375°F oven for 50-55 minutes, until the filling is bubbly and the crust is golden brown. The edges should look set, but the center might still jiggle slightly—this is normal and indicates a perfectly set filling. If the crust starts to brown too quickly, tent it loosely with aluminum foil to prevent burning.

Remove the pie from the oven and let it cool on a wire rack for at least 2 hours—this is critical for the filling to fully set and develop its rich, jammy texture. The longer it cools, the better the flavors meld together. I know it's tempting to dig in right away, but patience here makes all the difference.

Once cooled, serve slices of the rhubarb pie topped with 1 cup coconut whipped cream. The creaminess of the coconut perfectly balances the tartness of the rhubarb, creating a harmonious finish. Store any leftovers in the refrigerator for up to 3 days, though I doubt there will be any leftovers—this pie disappears fast!

Creative variations of this dish

Crustless Option

Skip the crust entirely and bake the rhubarb filling in a deep 9-inch pie dish or ramekin dishes for individual servings. Line the dish with parchment paper for easy removal, then fill with the rhubarb mixture.

Bake at 375°F for 40-45 minutes until bubbly and set. This version is perfect for those who love the filling but want to avoid crust prep entirely. 🥥

Spiced Filling Twist

Add 1 tsp cinnamon and ½ tsp ginger to the filling for a warm, aromatic twist. These spices complement rhubarb's tartness beautifully while adding depth. For extra warmth, sprinkle ½ tsp cardamom on top before baking. The spices mellow during baking, leaving a subtle, cozy flavor profile. 🌶️

Nutty Crust Variation

Replace half the flour in the crust with ½ cup almond flour for a nutty, slightly crumbly texture. The almond flour adds richness while keeping the crust vegan.

For extra flavor, mix in 1 tbsp maple syrup with the coconut oil before combining with dry ingredients. This version pairs wonderfully with the tart rhubarb. 🌰

Seasonal Fruit Add-Ins

Incorporate seasonal fruits like strawberries or blueberries into the filling for a mixed-berry twist. Use 1 cup chopped berries alongside the rhubarb, adjusting the maple syrup to 1 cup to balance the extra sweetness. The berries add juiciness and vibrant color, making the pie even more inviting. 🍓

Gluten-Free Adaptation

Swap the all-purpose flour for a 1:1 gluten-free flour blend (like Bob's Red Mill) to make this pie gluten-free. The crust may be slightly crumbly, so press it firmly into the pie dish.

For extra binding, add 1 tbsp ground flaxseed to the crust mixture. The filling remains unchanged, ensuring the same delicious tartness. ✨

Make-Ahead Freezer Option

Assemble the pie completely, then freeze it unbaked in an airtight container for up to 3 months. When ready to bake, thaw overnight in the fridge, then bake as directed.

The crust may need an extra 5-10 minutes to crisp up. This is a lifesaver for busy days or holiday prep! ❄️

Frequently asked questions