Imagine sinking your spoon into a warm, bubbling dish of rhubarb crumble, where the tangy sweetness of fresh rhubarb dances alongside a crunchy oat and almond topping. The aroma wafts through the air, promising a delightful explosion of flavors that make your taste buds tingle with anticipation, perfect for cozy gatherings or solo indulgence after a long day.

This vegan rhubarb crumble isn’t just a dessert; it's a slice of nostalgia wrapped in a crispy blanket. I remember making it with my grandmother on rainy afternoons, her laughter mixing with the scent of baked goodness. Each bite is a celebration of simplicity and joy, ideal for sharing with friends or savoring quietly while binge-watching your favorite show. Get ready to enjoy an unforgettable flavor experience!
Why Is Rhubarb Crumble (Vegan) So Irresistibly Good?
Bursting with flavor, this Rhubarb Crumble showcases the tangy sweetness of fresh rhubarb, perfectly balanced with a hint of cinnamon. Quick to prepare, you can whip it up in just 15 minutes, making it an ideal dessert for unexpected guests. Nutty and crunchy, the oat and almond topping adds delightful texture to every bite. Versatile and customizable, adjust the sugar to your taste or switch up the toppings for a unique twist. Crowd-pleasing appeal ensures everyone will come back for seconds!
Rhubarb Crumble (Vegan) Ingredients
For the Filling
- 4 cups rhubarb, chopped – Fresh rhubarb brings a delightful tartness that’s essential for this Rhubarb Crumble (Vegan).
- 1 cup sugar (adjust to taste) – Sweeten to your preference; less sugar can highlight the tangy flavor of the rhubarb.
- 2 tablespoons cornstarch (for thickening) – This will help create a luscious filling by binding the juices released during baking.
- 1 teaspoon vanilla extract – Adds depth and warmth to the overall flavor profile.
- 1 teaspoon cinnamon – This spice enhances the crumble with its comforting aroma and taste.
For the Topping
- 1 cup oats (rolled or quick oats) – Oats provide that hearty texture and wholesome goodness in each bite.
- ½ cup almond flour – Offers a nutty flavor that pairs beautifully with the sweetness of the filling.
- ¼ cup coconut oil (melted) – This healthy fat gives the topping its crispy texture while adding a subtle coconut essence.
- ¼ cup brown sugar – Adds richness and moisture, creating a deliciously caramelized topping.
- ½ teaspoon salt – Balances out the sweetness and enhances all flavors in this delightful dessert.
Step-by-Step Rhubarb Crumble (Vegan)
1. Preheat the oven to 350°F (175°C). This ensures a perfectly baked Rhubarb Crumble (Vegan) with that delightful golden topping.
2. Combine chopped rhubarb, sugar, cornstarch, vanilla extract, and cinnamon in a mixing bowl. Mix well until everything is evenly coated, creating a fragrant and tangy filling.
3. Transfer the rhubarb mixture to a baking dish, spreading it evenly across the bottom. This layer will bubble beautifully as it bakes—get ready for some delicious aromas!
For the Topping:
4. Mix oats, almond flour, melted coconut oil, brown sugar, and salt in another bowl until crumbly. You’re looking for a texture that resembles wet sand—this will create a crispy topping!
5. Sprinkle the topping evenly over the rhubarb filling in the baking dish. Ensure every part of the filling is covered for that delightful crunch with every bite.
6. Bake in the preheated oven for 30 minutes, or until the topping is golden brown and you see bubbling rhubarb peeking through. The anticipation will be worth it!
7. Remove from the oven and let cool slightly before serving. This pause allows flavors to meld beautifully while you prepare your favorite scoop of vegan ice cream on the side!
Optional: Serve warm with a scoop of dairy-free ice cream for an extra treat.
Exact quantities are listed in the recipe card below.
Expert Tips
- Rhubarb Selection: Choose fresh, vibrant rhubarb stalks that are firm and crisp. Avoid any that look wilted or discolored for the best Rhubarb Crumble (Vegan).
- Sugar Balance: Adjust the sugar based on your taste and the tartness of the rhubarb. A little experimentation can help you find the perfect balance.
- Thickening Agent: Ensure the cornstarch is mixed thoroughly with the rhubarb to prevent clumping. This will give your filling a smooth texture.
- Oat Consistency: If using quick oats, be mindful they will absorb moisture faster. Rolled oats retain more texture and create a heartier topping.
- Baking Time: Keep an eye on your crumble towards the end of baking; ovens vary, and you want it golden brown without burning.
- Cooling Period: Allowing your Rhubarb Crumble (Vegan) to cool slightly before serving allows the filling to set up, making it easier to scoop!
How to Store and Freeze Rhubarb Crumble (Vegan)

- Room Temperature: Enjoy your Rhubarb Crumble (Vegan) fresh for up to 1 day if kept covered at room temperature; the topping may soften over time.
- Fridge: Store leftovers in an airtight container in the refrigerator for up to 3 days. This will help maintain the crumble's texture and flavor.
- Freezer: For longer storage, freeze the cooled crumble in a tightly sealed container or freezer bag for up to 3 months. Thaw overnight in the fridge before reheating.
- Reheating: Reheat individual portions in the microwave for 30-60 seconds, or warm the entire crumble in a preheated oven at 350°F (175°C) for about 15 minutes.
Rhubarb Crumble (Vegan) Your Way
Feel free to get creative and make this delightful dessert your own with these tasty twists!
- Sweetener Swap: Replace the sugar with maple syrup for a rich, earthy sweetness. Just remember to reduce the cornstarch slightly to maintain thickness.
- Berry Boost: Add in 1 cup of mixed berries like strawberries or blueberries for an extra burst of flavor and color. The tartness of the berries complements the rhubarb beautifully.
- Nutty Crunch: Substitute half the almond flour with finely chopped nuts, such as walnuts or pecans, for added texture and a delightful crunch. This gives the topping a heartier feel that pairs perfectly with the soft filling.
- Spice It Up: Enhance the flavor by adding ½ teaspoon of ginger or cardamom to the filling. These fragrant spices elevate the dish, giving it a warm, comforting aroma.
- Coconut Twist: Swap coconut oil for vegan butter in the topping for a richer taste. This change creates a more traditional crumble texture while keeping it completely plant-based.
- Zesty Kick: Incorporate the zest of one orange into the filling for a citrusy brightness that complements the tanginess of rhubarb. It's a refreshing twist that will have everyone asking for seconds.
- Gluten-Free Option: Use gluten-free oats and almond flour to make this dessert safe for those with gluten sensitivities. You won't lose any of that delicious flavor while ensuring it's accessible to all!
Make Ahead Options
Preparing this Rhubarb Crumble (Vegan) ahead of time is a fantastic way to save you some precious moments in the kitchen while still delivering that delightful homemade taste. You can easily chop the 4 cups of rhubarb and combine it with 1 cup of sugar, 2 tablespoons of cornstarch, 1 teaspoon of vanilla extract, and 1 teaspoon of cinnamon up to 24 hours in advance. Store this filling in an airtight container in the refrigerator. Similarly, the topping made from 1 cup of oats, ½ cup almond flour, ¼ cup melted coconut oil, ¼ cup brown sugar, and ½ teaspoon salt can be mixed and kept separately for about 3 days. When you're ready to bake your Rhubarb Crumble (Vegan), simply preheat your oven to 350°F (175°C), layer your prepared filling in a baking dish, sprinkle on the crumbly topping, and bake for about 30 minutes until golden brown and bubbling. This not only saves time but ensures you maintain the freshest flavors right before serving!
Rhubarb Crumble (Vegan) Recipe FAQs
Can I use frozen rhubarb for this recipe?
Absolutely! Frozen rhubarb works wonderfully in this vegan rhubarb crumble. Just make sure to thaw it first and drain any excess moisture before mixing it with the sugar and cornstarch. This will help maintain the right texture in your filling.
How can I adjust the sweetness of my rhubarb crumble?
Since rhubarb is quite tart, adjusting the sugar to your taste is key! You can start with one cup of sugar and taste the filling before baking. If you prefer a sweeter dessert, feel free to add more sugar, but keep in mind that too much sweetness can mask the delightful tartness of the rhubarb.
What is the purpose of cornstarch in this recipe?
Cornstarch acts as a thickening agent for your filling, helping to create a perfect consistency as it bakes. It binds with the juices released from the rhubarb, resulting in a deliciously gooey filling that contrasts beautifully with the crispy topping. If you're out of cornstarch, you can substitute it with an equal amount of tapioca starch or all-purpose flour.
How should I store leftover rhubarb crumble?
To store your leftover rhubarb crumble, simply cover it tightly with plastic wrap or transfer it to an airtight container. It will keep well in the refrigerator for up to 3 days. When you're ready to enjoy it again, you can gently reheat it in the oven at 350°F (175°C) for about 10-15 minutes until warmed through.
Can I freeze rhubarb crumble?
Yes! This rhubarb crumble freezes beautifully. After baking and cooling it completely, wrap individual portions in plastic wrap and then place them in freezer-safe bags. It can be frozen for up to 3 months. To enjoy later, thaw overnight in the fridge and reheat as mentioned above!
What are some great ways to serve this vegan crumble?
This tangy vegan rhubarb crumble is fantastic on its own, but pairing it with a scoop of coconut ice cream or a dollop of coconut whipped cream elevates it even further! For added flair, sprinkle some chopped nuts or fresh mint leaves on top before serving—it adds a lovely touch both visually and flavor-wise.

Rhubarb Crumble (Vegan)
Ingredients
Method
- Preheat the oven to 350°F (175°C).
- In a mixing bowl, combine the chopped rhubarb, sugar, cornstarch, vanilla extract, and cinnamon. Mix well.
- Transfer the rhubarb mixture to a baking dish, spreading it evenly.
- In another bowl, mix together the oats, almond flour, melted coconut oil, brown sugar, and salt until crumbly.
- Sprinkle the topping evenly over the rhubarb filling in the baking dish.
- Bake in the preheated oven for 30 minutes, or until the topping is golden brown and the rhubarb is bubbling.
- Remove from the oven and let cool slightly before serving.




