Easy Rhubarb Crumble (Healthy & Vegan)
The first time I tasted Easy Rhubarb Crumble (Healthy & Vegan), I was hooked by its perfect balance of sweet and tart, with the crunch of the oat topping giving way to a tender, fruity filling.
I still remember the sunny Sunday afternoon I first made it, using fresh rhubarb from my grandmother’s garden and watching as the family gathered around the table, eager to taste the warm, comforting dessert.
As we sat around the table, savoring the last bites of the crumble, I knew I had found a new family favorite – and that’s exactly what This Easy Rhubarb Crumble (Healthy & Vegan) quickly became a cherished family favorite.

Why You’ll Love This Easy Rhubarb Crumble (Healthy & Vegan)
- The combination of crunchy oat topping and tender rhubarb filling is absolute perfection.
- The flavors are beautifully balanced, with the sweetness of the oats and the tartness of the rhubarb melding together in perfect harmony.
- It’s ready in under 45 minutes, making it the perfect dessert for a quick weeknight treat or a special occasion.
- The recipe is incredibly foolproof, with a simple and straightforward method that’s hard to mess up.
- It’s perfect for potlucks, picnics, or family gatherings, and is sure to be a hit with both kids and adults.
Ingredients You’ll Need
- 1 1/2 cups rolled oats
- 1/2 cup brown sugar
- 1/2 cup vegan butter, chilled and cut into small pieces
- 1 1/2 cups mixed berries (such as strawberries, blueberries, raspberries)
- 1/2 cup granulated sugar
- 2 tablespoons cornstarch
- 1 tablespoon lemon juice
- 1/4 cup chopped fresh rhubarb

The star of the show is, of course, the fresh rhubarb, which adds a tartness and depth of flavor that’s just irresistible. The rolled oats provide a lovely texture and a nutty flavor that complements the rhubarb perfectly.
Expert Tips for the Best Easy Rhubarb Crumble (Healthy & Vegan)
- Make sure to not overmix the oat topping, as this can make it tough and dense – instead, simply stir the ingredients together until they’re just combined.
- A common mistake is to not cook the rhubarb for long enough, which can leave it too tart and crunchy – be sure to cook it until it’s tender and lightly caramelized.
- To take your crumble to the next level, try adding a sprinkle of cinnamon or nutmeg to the oat topping for an extra boost of flavor.
- The crumble is done when the topping is golden brown and the filling is tender and bubbly.
- You can make the crumble ahead of time and store it in the fridge for up to a day before baking – simply assemble the dish, cover it with plastic wrap, and bake when you’re ready.
Variations and Substitutions
You can easily make this recipe gluten-free by substituting the oats with gluten-free oats, or add some extra protein with a sprinkle of nuts or seeds. For a bold flavor twist, try adding a splash of citrus juice or zest to the rhubarb filling.

How to Store and Reheat
The crumble will keep in the fridge for up to 3 days, and can be reheated in the oven or microwave – simply cover it with plastic wrap or aluminum foil and heat until warmed through. You can also freeze the crumble for up to 2 months, and thaw and reheat as needed.
Frequently Asked Questions
Can I use frozen rhubarb instead of fresh?
Yes, you can use frozen rhubarb – simply thaw it first and pat it dry with a paper towel to remove excess moisture. The flavor and texture may be slightly different, but it will still be delicious.
How do I prevent the oat topping from becoming too brown?
To prevent the oat topping from becoming too brown, simply cover the dish with aluminum foil for the last 10-15 minutes of baking – this will help it cook evenly and prevent it from burning.
Can I serve the crumble at room temperature?
Yes, you can serve the crumble at room temperature – in fact, it’s often even more delicious when it’s been allowed to cool and set for a bit. Simply let it cool to room temperature, then serve and enjoy.
I hope you love this Easy Rhubarb Crumble (Healthy & Vegan) as much as my family and I do – it’s the perfect dessert for any occasion, and is sure to become a new favorite in your household. So go ahead, give it a try, and let me know what you think – I’d love to hear your feedback and see your creations!
Rhubarb Crumble
🧂 Ingredients
👩🍳 Instructions
-
1Preheat the oven to 375°F (190°C).
-
2In a large mixing bowl, combine the rolled oats, brown sugar, and vegan butter. Use your fingers or a pastry blender to work the butter into the dry ingredients until the mixture resembles coarse crumbs.
-
3In a separate bowl, mix together the mixed berries, granulated sugar, cornstarch, and lemon juice. Add the chopped rhubarb and toss until the fruit is evenly coated.
-
4Transfer the fruit mixture to a 9×9-inch baking dish. Top with the oat mixture, spreading it evenly to cover the fruit.
-
5Bake for 30-35 minutes, or until the topping is golden brown and the fruit is bubbly and tender.
-
6Remove the crumble from the oven and let it cool for a few minutes before serving. Serve warm, topped with vanilla ice cream or whipped cream if desired.

