If you’re dreaming of a dessert that perfectly balances tart, sweet, and nutty flavors, look no further than this Rhubarb Crisp with Orange Zest, Cardamom, and Nut Topping Recipe. It’s a delightfully comforting dish that brings together the zing of fresh rhubarb, the brightness of citrus zest, and the warm spice of cardamom, all topped with a crunchy, buttery mixture of nuts and oats. This crisp is as simple as it is sophisticated, making it an ideal choice for a cozy night in or a show-stopping finish to any meal.

Ingredients You’ll Need
Gathering the right ingredients is the first step to making this Rhubarb Crisp with Orange Zest, Cardamom, and Nut Topping Recipe truly shine. Each element plays a vital role in creating layers of flavor and texture, from the tart rhubarb and fragrant cardamom to the rich nutty topping that crowns it all.
- 1 pound rhubarb stalks, cut into 1/2 inch pieces: The star fruit providing that tangy, juicy punch that contrasts beautifully with the sweet topping.
- 1 cup brown sugar: Adds a deep, caramel-like sweetness that melts into the rhubarb as it cooks.
- 2 tablespoons freshly squeezed orange juice: Brings a fresh citrus brightness that enhances the fruit’s natural flavors.
- 1/2 tablespoon corn starch: Acts as a thickener to ensure the filling isn’t too runny once baked.
- 2 teaspoons orange zest: Infuses the crisp with fragrant, zingy notes without overpowering the main ingredients.
- 1 teaspoon lemon zest: Adds a sharp citrus edge that complements the orange zest for a lively flavor profile.
- 1 teaspoon ground cardamom: Offers a warm, slightly spicy aroma that elevates every bite.
- 1 cup old fashioned rolled oats: Creates the perfect chewy texture in the topping.
- 6 tablespoons butter: Responsible for the crisp, golden finish of the topping and its rich mouthfeel.
- 1/2 cup all-purpose flour: Helps bind the topping ingredients together for that classic crisp structure.
- 1/2 cup pecans, finely chopped: Adds a buttery crunch that contrasts wonderfully with the soft filling.
- 1/4 cup pistachios, finely chopped: Contributes a unique color and subtle nutty flavor that’s both unexpected and delightful.
- 2 tablespoons honey: Provides natural sweetness and a caramelized finish to the nut topping.
How to Make Rhubarb Crisp with Orange Zest, Cardamom, and Nut Topping Recipe
Step 1: Preheat Your Oven
Start by setting your oven to 375 degrees Fahrenheit. This temperature is perfect for creating a golden, crunchy topping while gently baking the rhubarb filling until tender and bubbling.
Step 2: Prepare the Corn Starch Mixture
In a small bowl, whisk together the orange juice and corn starch until the corn starch is fully dissolved. This slurry will thicken the juicy fruit mixture, ensuring your crisp filling is luscious but not watery.
Step 3: Mix the Rhubarb Filling
Combine the chopped rhubarb, brown sugar, the corn starch slurry, orange zest, lemon zest, and ground cardamom in a baking dish—choose one that’s 9×9 or 11×7 inches to give everything room to cook evenly. This blend is where the magic happens, creating a balanced tart and sweet base highlighted by the warm spice.
Step 4: Make the Nutty Crisp Topping
In a separate bowl, toss together the oats, butter, flour, pecans, pistachios, and honey. Use a pastry blender or two forks to cut the butter into the dry ingredients until the mixture forms pea-sized clumps. This texture will bake up into the beautifully crunchy and chewy topping that defines this crisp.
Step 5: Assemble the Crisp
Evenly spread the oat mixture over the rhubarb filling, making sure to cover all the fruit with the nutty topping. This step seals in the juices and ensures each bite has that satisfying crisp layer on top.
Step 6: Bake Until Golden
Place the crisp in the oven and bake for approximately 50 minutes. You’ll want to see the topping turn a deep golden brown and the filling bubbling around the edges—a sign the rhubarb has softened and melded perfectly with the spices and citrus zest.
Step 7: Let It Cool Before Serving
Allow your Rhubarb Crisp with Orange Zest, Cardamom, and Nut Topping Recipe to cool for a few minutes before serving. This pause lets the filling set slightly so it won’t spill over. For an extra indulgent touch, serve it warm with a scoop of vanilla ice cream or a dollop of whipped cream.
How to Serve Rhubarb Crisp with Orange Zest, Cardamom, and Nut Topping Recipe

Garnishes
A sprinkle of extra chopped nuts or a little fresh orange zest on top right before serving adds a lovely pop of color and texture. A light dusting of powdered sugar can also make the presentation more elegant and enticing.
Side Dishes
This crisp pairs wonderfully with creamy vanilla ice cream or a spoonful of Greek yogurt, balancing the tartness of the rhubarb while adding a cooling contrast. For a brunch twist, serve alongside a cup of spiced tea or freshly brewed coffee.
Creative Ways to Present
Try serving individual portions of this Rhubarb Crisp with Orange Zest, Cardamom, and Nut Topping Recipe in small ramekins or mason jars for a charming, rustic look. You can also layer it with whipped cream or custard in clear glasses to create a beautiful trifle effect that showcases the vibrant colors and textures.
Make Ahead and Storage
Storing Leftovers
Once cooled, cover your rhubarb crisp tightly with plastic wrap or foil and refrigerate. It will stay fresh and delicious for up to 3 days, perfect for quick desserts when you’re craving something sweet and comforting.
Freezing
You can freeze this crisp either before baking (covering it tightly) or after it has cooled. Frozen unbaked crisp can be stored for up to 1 month, while baked leftovers freeze well for up to 3 months. Just thaw overnight in the fridge before reheating.
Reheating
Warm leftover crisp in the oven at 350 degrees Fahrenheit for about 15-20 minutes, or until heated through and the topping is crisp again. Microwaving works in a pinch but can soften the topping, so the oven is best for preserving texture.
FAQs
Can I substitute the nuts in the topping?
Absolutely! While pecans and pistachios give a lovely flavor and texture, you can swap in walnuts, almonds, or even sunflower seeds if you have allergies or prefer a different crunch.
Is it necessary to use both orange and lemon zest?
Using both zests creates a more complex and balanced citrus flavor, but if you only have one on hand, using just orange zest will still provide a bright, fresh note that lifts the rhubarb beautifully.
Can I make this recipe vegan?
Yes! Replace the butter with a vegan butter substitute or coconut oil, and opt for maple syrup instead of honey in the nut topping. The crisp will still have that deliciously rich texture and flavor.
What if I don’t have cardamom?
If cardamom isn’t in your spice cupboard, cinnamon is a nice alternative that pairs well with rhubarb, though it will give a slightly different flavor profile.
How tart will this rhubarb crisp be?
This Rhubarb Crisp with Orange Zest, Cardamom, and Nut Topping Recipe strikes a lovely balance between tart and sweet. The brown sugar and honey soften the rhubarb’s natural tang, while the citrus zest and cardamom add brightness and warmth without overwhelming the palate.
Final Thoughts
This Rhubarb Crisp with Orange Zest, Cardamom, and Nut Topping Recipe has quickly become a cherished favorite for good reason. It’s easy to make, gorgeous to serve, and utterly delicious to eat—filled with fresh, vibrant flavors wrapped in a satisfyingly crunchy topping. Next time you have rhubarb on hand, dive into this recipe and watch it become a new classic at your table.
Print
Rhubarb Crisp with Orange Zest, Cardamom, and Nut Topping Recipe
- Prep Time: 10 minutes
- Cook Time: 50 minutes
- Total Time: 1 hour
- Yield: 6 servings
- Category: Dessert
- Method: Baking
- Cuisine: American
Description
This Rhubarb Crisp is a delightful dessert featuring tart rhubarb pieces baked under a crunchy oat, nut, and honey topping. Infused with citrus zest and aromatic cardamom, it delivers a perfect balance of tangy and sweet flavors. Easy to prepare and baked to golden perfection, it’s a cozy treat ideal for spring and summer gatherings.
Ingredients
Fruit Filling
- 1 pound rhubarb stalks, cut into 1/2 inch pieces
- 1 cup brown sugar
- 2 tablespoons freshly squeezed orange juice
- 1/2 tablespoon corn starch
- 2 teaspoons orange zest
- 1 teaspoon lemon zest
- 1 teaspoon ground cardamom
Crisp Topping
- 1 cup old fashioned rolled oats
- 6 tablespoons butter
- 1/2 cup all-purpose flour
- 1/2 cup pecans, finely chopped
- 1/4 cup pistachios, finely chopped
- 2 tablespoons honey
Instructions
- Preheat Oven: Preheat your oven to 375 degrees Fahrenheit to prepare for baking the crisp.
- Prepare Cornstarch Slurry: In a small bowl, whisk together the freshly squeezed orange juice and corn starch until the corn starch is fully dissolved. This slurry will help thicken the rhubarb filling.
- Mix Filling: In a 9×9 or 11×7 inch baking pan, combine the rhubarb pieces, brown sugar, orange-lemon zest, cardamom, and the cornstarch slurry. Mix thoroughly to evenly coat the rhubarb.
- Make Crisp Topping: In a mixing bowl, combine the rolled oats, butter, all-purpose flour, finely chopped pecans and pistachios, and honey. Use a pastry blender or two forks to cut in the butter until the mixture resembles coarse crumbs with pea-sized butter pieces.
- Assemble: Spread the oat topping evenly over the rhubarb filling in the baking pan to fully cover the fruit.
- Bake: Bake in the preheated oven for 50 minutes, or until the oat topping is golden brown and crisp, and the filling is bubbly.
- Cool and Serve: Remove from the oven and let cool for a few minutes before serving. Optionally, serve warm with a scoop of vanilla ice cream for extra indulgence.
Notes
- For a nut-free version, omit pecans and pistachios or substitute with seeds like sunflower or pumpkin seeds.
- You can adjust the sweetness by using more or less brown sugar according to your taste preferences.
- If rhubarb is very tart, a little more honey in the topping can help balance flavors.
- The crisp topping can be made ahead and stored refrigerated before assembling.
- Ensure the rhubarb pieces are evenly coated with the cornstarch slurry to avoid a runny filling.

