Easy Rhubarb Crisp
I still remember the first autumn I baked this Easy Rhubarb Crisp for a chilly Sunday afternoon: the house filled with tart, warming aromas while maple leaves skittered past the window. That memory is why this recipe has become a reader favorite—simple, comforting, and just the right balance of tangy fruit and crunchy topping. If you love seasonal treats that are forgiving for beginners, this Easy Rhubarb Crisp will become your go-to dessert.
Introduction
This Easy Rhubarb Crisp is perfect for backyard fruit stands and late-season markets when rhubarb is at its peak. It’s approachable for first-time bakers and flexible enough for experienced cooks who want to tweak the topping or sweetness. While it bakes, consider pairing it with your favorite air-fried snack or a cozy beverage—some readers enjoy it after trying our air-fryer crispy barbecue chickpeas for a fun contrast of textures.
Ingredients list
Makes one 8×8- or 9×9-inch crisp
- 4 cups chopped fresh rhubarb (about 1 lb)
- 3/4 cup granulated sugar (adjust to taste)
- 1 tablespoon lemon juice
- 2 teaspoons cornstarch
- 1/4 teaspoon salt
Topping
- 1 cup rolled oats (old-fashioned)
- 3/4 cup all-purpose flour
- 1/2 cup packed brown sugar
- 1/2 teaspoon ground cinnamon
- 1/4 teaspoon salt
- 1/2 cup cold unsalted butter, cubed
If you’d like a crispy, savory bite before dessert, this rhubarb dish pairs nicely after a meal featuring air-fryer crispy chilli beef.
Step-by-step instructions
- Preheat and prep: Preheat your oven to 375°F (190°C). Lightly grease your baking dish.
- Make the filling: In a mixing bowl, combine the chopped rhubarb, granulated sugar, lemon juice, cornstarch, and salt. Stir until the rhubarb is evenly coated and the cornstarch is fully dissolved.
- Transfer to dish: Pour the rhubarb mixture into the prepared baking dish, spreading it into an even layer.
- Prepare the topping: In another bowl, whisk together oats, flour, brown sugar, cinnamon, and salt. Add the cubed cold butter and use a pastry cutter (or your fingertips) to rub the butter into the dry ingredients until the mixture resembles coarse crumbs and clumps begin to form.
- Assemble: Sprinkle the topping evenly over the rhubarb.
- Bake: Place the dish on a baking sheet to catch any juices and bake for 35–40 minutes, or until the topping is golden brown and the rhubarb is bubbling around the edges.
- Cool and serve: Let cool at least 10 minutes before serving so the filling sets. A scoop of vanilla ice cream or a dollop of whipped cream makes it extra cozy.
For a different weeknight dessert, you might try an easy savory snack followed by the crisp; many readers enjoy it after making air-fryer crispy juicy chicken thighs.
Tips for success
- Choose firm rhubarb stalks with bright color for the best texture.
- Taste your rhubarb: if your rhubarb is particularly tart, add an extra tablespoon or two of sugar to the filling.
- Keep the butter cold for the topping; it creates flakier, crisper clusters.
- If the topping browns too quickly, tent the dish loosely with foil for the last 10 minutes.
- Use a shallow baking dish to encourage bubbling and crisp edges.
I also like to serve this seasonal dessert after a small savory plate like our air-fryer easy Welsh rarebit, which balances the tartness beautifully.
Possible variations
- Gluten-free: Substitute a 1:1 gluten-free flour blend for the all-purpose flour and ensure your oats are certified gluten-free for an equally delicious gluten-free Easy Rhubarb Crisp.
- Streusel topping: Swap half the oats for chopped nuts (walnuts or pecans) and use slightly more brown sugar for a richer streusel-style crunch.
- Mixed fruit: Add 1 cup diced apples or strawberries to the rhubarb for a fruity medley.
- Lower sugar: Replace some sugar with maple syrup or a natural sweetener, adjusting amounts to taste.
If you’re short on time but still want a crispy finish, try adding small pieces of pre-cooked gnocchi on the side for a playful twist—many readers pair desserts with quick bites like air-fryer gnocchi extra crispy 15 minutes for variety.
Storage recommendations
- Room temperature: Store any leftover Easy Rhubarb Crisp covered at room temperature for up to 1 day.
- Refrigerator: Keep leftovers in an airtight container in the fridge for 3–4 days. Reheat gently in a 350°F (175°C) oven to refresh the topping.
- Freezing: Freeze the crisp (unbaked) for up to 3 months by wrapping tightly in foil and placing in a freezer bag; bake from frozen, adding 10–15 minutes to the baking time.
Conclusion
This Easy Rhubarb Crisp is a warm, seasonal dessert that showcases the bright flavor of rhubarb with a comforting crunchy topping—perfect for cozy fall gatherings or a quiet weekend treat. For an alternate method and a short video to follow along, you can check the full guide at Easy Rhubarb Crisp Recipe [+ Video] – Savory Nothings.
FAQs
Q: What’s the difference between a crisp and a crumble?
A: A crisp typically includes oats in the topping, which gives it a crunchy texture, while a crumble is usually made with flour, butter, and sugar and has a sandier crumb without oats.
Q: Can I use frozen rhubarb for this recipe?
A: Yes, frozen rhubarb works well; thaw and drain excess liquid before mixing with sugar and cornstarch to avoid a watery filling.
Q: How sweet should the rhubarb filling be?
A: Sweetness is subjective, but for most palates, 3/4 cup sugar for 4 cups of rhubarb is a good starting point. Taste your rhubarb and add more sugar if it’s especially tart.
Q: Can I prepare Easy Rhubarb Crisp ahead of time?
A: Yes—assemble the crisp and refrigerate it (covered) up to 24 hours before baking. Alternatively, freeze uncooked for longer storage and bake directly from frozen, increasing time as needed.

Easy Rhubarb Crisp
- Total Time: 55 minutes
- Yield: 8 servings
- Diet: Vegetarian
Description
A warm, seasonal dessert that showcases the bright flavor of rhubarb with a comforting crunchy topping, perfect for cozy fall gatherings.
Ingredients
- 4 cups chopped fresh rhubarb (about 1 lb)
- 3/4 cup granulated sugar (adjust to taste)
- 1 tablespoon lemon juice
- 2 teaspoons cornstarch
- 1/4 teaspoon salt
- 1 cup rolled oats (old-fashioned)
- 3/4 cup all-purpose flour
- 1/2 cup packed brown sugar
- 1/2 teaspoon ground cinnamon
- 1/4 teaspoon salt
- 1/2 cup cold unsalted butter, cubed
Instructions
- Preheat your oven to 375°F (190°C). Lightly grease your baking dish.
- Combine the chopped rhubarb, granulated sugar, lemon juice, cornstarch, and salt in a mixing bowl. Stir until evenly coated.
- Pour the rhubarb mixture into the prepared baking dish, spreading it into an even layer.
- Whisk together oats, flour, brown sugar, cinnamon, and salt in another bowl. Add the cubed cold butter and use a pastry cutter (or your fingertips) to rub the butter into the dry ingredients until it resembles coarse crumbs.
- Sprinkle the topping evenly over the rhubarb.
- Bake for 35–40 minutes, until the topping is golden brown and rhubarb is bubbling around the edges.
- Cool for at least 10 minutes before serving.
Notes
Serve with a scoop of vanilla ice cream or whipped cream. For gluten-free, substitute the flour with a gluten-free flour blend.
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
