There is nothing quite as comforting and delightful as a warm, tangy-sweet dessert that effortlessly brings sunshine to your day. This Rhubarb Crisp Recipe is exactly that kind of treat, bursting with the vibrant tartness of fresh rhubarb and topped with a buttery, crunchy oat topping that’s simply irresistible. It’s the ultimate cozy dessert perfect for any season, whether you’re gathering around the table with loved ones or craving a little homemade indulgence to brighten your afternoon. Trust me, once you try this Rhubarb Crisp Recipe, it will quickly become one of your favorite go-to desserts.

Ingredients You’ll Need
This Rhubarb Crisp Recipe is wonderfully simple, relying on a handful of everyday ingredients that come together to create a spectacular balance of flavors and textures. Each ingredient plays a vital role in bringing out the best in the rhubarb and creating that irresistible crisp topping.
- Fresh rhubarb (4 cups, chopped): The star of the dish, providing tartness and juiciness.
- Granulated sugar (1 1/4 cups): Sweetens the rhubarb filling perfectly to balance its tang.
- Cornstarch (1 tablespoon): Thickens the filling so it’s beautifully set and not runny.
- Vanilla extract (1/2 teaspoon): Adds a subtle warmth and depth of flavor to the fruit.
- Rolled oats (1/2 cup): Brings a hearty, rustic texture to the crisp topping.
- All-purpose flour (1/2 cup): Helps bind the topping together for that perfect crumble.
- Brown sugar (1/2 cup, packed): Adds rich sweetness and slight caramel notes to the topping.
- Cinnamon (1/2 teaspoon): Introduces a warm spice that complements the rhubarb beautifully.
- Unsalted butter (1/2 cup, softened): Creates that tender, melt-in-your-mouth crisp topping everyone loves.
How to Make Rhubarb Crisp Recipe
Step 1: Prepare Your Baking Dish and Oven
Start by preheating your oven to 350°F (175°C) so it’s perfectly hot when you’re ready to bake. Grease a 9×9-inch baking dish lightly with butter or cooking spray to prevent sticking and help the crisp bake evenly with a golden crust.
Step 2: Mix the Rhubarb Filling
In a medium bowl, toss the chopped fresh rhubarb with granulated sugar, cornstarch, and vanilla extract. This mixture ensures that the rhubarb is sweetened without losing its natural tang, while the cornstarch thickens the juices. Spread this luscious filling evenly into your greased baking dish — this is the juicy base that makes the Rhubarb Crisp Recipe so tempting.
Step 3: Make the Crisp Topping
In a separate bowl, combine oats, all-purpose flour, brown sugar, and cinnamon. Then, cut in the softened butter using a pastry cutter or your fingers until the mixture looks like coarse crumbs. This step creates that satisfying crumbly texture that will crisp up beautifully in the oven.
Step 4: Assemble the Crisp
Sprinkle the oat topping evenly over the rhubarb filling. Make sure the topping covers the fruit fully because it bakes into a golden crust that locks in all those tangy-sweet rhubarb flavors underneath.
Step 5: Bake to Perfection
Bake your crisp for 40 to 45 minutes until the topping is golden brown and the rhubarb filling is bubbling with goodness. This signals your Rhubarb Crisp Recipe is perfectly cooked, with a gorgeously caramelized topping and a luscious fruit base.
Step 6: Let it Cool and Serve
Once out of the oven, allow the crisp to cool for a few minutes so it sets slightly, making it easier to serve. This little pause also helps the flavors meld beautifully for the ultimate eating experience.
How to Serve Rhubarb Crisp Recipe

Garnishes
To elevate your Rhubarb Crisp Recipe, add a scoop of creamy vanilla ice cream or a dollop of freshly whipped cream. The cold, smooth topping contrasts wonderfully with the warm, tart dessert, creating an irresistible flavor combination every time.
Side Dishes
This crisp is a fantastic standalone dessert, but it pairs wonderfully with a simple green salad or a light citrus sorbet if you’re serving a full meal. For brunch, serve alongside scrambled eggs or fresh fruit to balance sweet and savory flavors gracefully.
Creative Ways to Present
For a charming twist, serve the crisp in individual ramekins or mason jars. Layer the filling and topping for single servings before baking — perfect for sharing or gifting. You can also add toasted almonds or pecans to the topping for an added crunch and a nutty flavor dimension.
Make Ahead and Storage
Storing Leftovers
You can store any leftover rhubarb crisp in an airtight container in the refrigerator for up to 3 days. It tastes fantastic cold, but a quick reheat enhances the texture and brings back that freshly baked magic.
Freezing
If you want to enjoy your Rhubarb Crisp Recipe later, freezing is an excellent option. Wrap it tightly in plastic wrap and foil, then freeze for up to 2 months. When you’re ready, thaw it in the fridge overnight before reheating.
Reheating
To reheat, simply place the crisp in a preheated 350°F oven for about 15-20 minutes until warmed through and the topping regains its crunch. Avoid microwaving if possible because the topping can become soggy quickly.
FAQs
Can I use frozen rhubarb for this Rhubarb Crisp Recipe?
Absolutely! Just make sure to thaw and drain the frozen rhubarb well before mixing it with the sugar and cornstarch. This helps prevent the filling from becoming too watery.
What can I substitute for cornstarch?
If you don’t have cornstarch on hand, you can use arrowroot powder or tapioca starch in equal amounts to achieve a similar thickening effect in the filling.
Is it possible to make this Rhubarb Crisp Recipe gluten-free?
Yes! Swap the all-purpose flour for a gluten-free flour blend and use gluten-free oats. The crisp topping will still have that perfect crumbly texture without gluten.
Can I add other fruits to the rhubarb filling?
Definitely! Strawberries, raspberries, or even apples complement rhubarb’s tartness beautifully. Just adjust the sugar as needed to balance the additional fruit sweetness.
How do I know when the crisp is done baking?
Your Rhubarb Crisp Recipe is ready when the topping is golden brown and you see bubbling along the edges of the filling. This bubbling indicates that the fruit juices have thickened and the crisp is perfectly cooked.
Final Thoughts
If you’re looking for a dessert that’s bursting with bright, fresh flavors and topped with a heavenly crunch, this Rhubarb Crisp Recipe is calling your name. It’s a simple yet dazzling way to showcase rhubarb’s unique tartness, wrapped inside a buttery, warmly spiced topping. Make it for your next family gathering or a cozy night in, and watch it disappear in no time. You’re going to love how this recipe feels like a warm hug in dessert form.
Print
Rhubarb Crisp Recipe
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour
- Yield: 6 to 8 servings
- Category: Dessert
- Method: Baking
- Cuisine: American
Description
This delicious Rhubarb Crunch is a classic comforting dessert featuring a tangy rhubarb filling topped with a buttery oat crumble. Perfectly balanced between sweet and tart, it’s baked to golden perfection and can be enjoyed warm or at room temperature, optionally served with vanilla ice cream or whipped cream.
Ingredients
For the Rhubarb Filling
- 4 cups fresh rhubarb, chopped
- 1 1/4 cups granulated sugar
- 1 tablespoon cornstarch
- 1/2 teaspoon vanilla extract
For the Crunch Topping
- 1/2 cup rolled oats
- 1/2 cup all-purpose flour
- 1/2 cup packed brown sugar
- 1/2 teaspoon cinnamon
- 1/2 cup unsalted butter, softened
Instructions
- Preheat and Prepare: Preheat your oven to 350°F (175°C) and grease a 9×9-inch baking dish to prevent sticking.
- Make Rhubarb Filling: In a medium bowl, combine the chopped rhubarb with granulated sugar, cornstarch, and vanilla extract. Stir well until all pieces are evenly coated with the mixture. Spread this evenly into the prepared baking dish.
- Prepare the Topping: In another bowl, mix the rolled oats, all-purpose flour, brown sugar, and cinnamon. Add the softened butter, cutting it in with a pastry cutter or your fingers until the mixture resembles coarse crumbs.
- Assemble the Crunch: Sprinkle the oat topping evenly over the rhubarb filling layer in the baking dish, ensuring full coverage.
- Bake: Place the dish in the preheated oven and bake for 40-45 minutes or until the topping turns a golden brown and the rhubarb filling is bubbly and cooked through.
- Cool and Serve: Remove from the oven and allow the dessert to cool for several minutes before serving. Enjoy warm or at room temperature, optionally paired with vanilla ice cream or whipped cream for extra indulgence.
Notes
- If fresh rhubarb is unavailable, frozen rhubarb can be used; just be sure to thaw and drain excess moisture before use.
- Adjust sugar levels if you prefer a less sweet or more tart dessert.
- For a gluten-free version, substitute the all-purpose flour with a gluten-free flour blend and ensure oats are certified gluten-free.
- Butter can be replaced with a vegan alternative to make this dairy-free.
- This dessert can be stored covered in the refrigerator for up to 3 days and reheated gently before serving.

