Rhubarb Crunch is a delightful dessert that brings a unique twist to the classic rhubarb crisp. With its delicious brown sugar oatmeal crumble topping, this dish is perfect for family gatherings, potlucks, or simply enjoying at home. The combination of sweet and tangy rhubarb creates a flavor that is both comforting and refreshing. Plus, serving it warm with a scoop of vanilla ice cream elevates the experience even further!
Why You’ll Love This Recipe
- Easy to Make: This recipe requires minimal effort, making it perfect for bakers of all skill levels.
- Bursting with Flavor: The tartness of rhubarb combined with the sweetness of brown sugar creates an irresistible taste.
- Versatile Dessert: Whether you serve it at a holiday meal or a casual weeknight dinner, Rhubarb Crunch fits any occasion.
- Deliciously Warm or Cold: Enjoy it fresh from the oven or let it cool down for a refreshing treat later.
Tools and Preparation
Before you start baking, gather your tools to ensure a smooth cooking process.
Essential Tools and Equipment
- 9 x 9 inch or 11 x 7 inch baking pan
- Medium mixing bowl
- Small saucepan
- Mixing spoon
- Measuring cups and spoons
Importance of Each Tool
- Baking pan: The right size ensures even baking and proper texture for your Rhubarb Crunch.
- Mixing bowl: A medium bowl allows enough room to mix ingredients without spills.
- Saucepan: Perfect for combining sugar and cornstarch to create a thick sauce that complements the rhubarb.
Ingredients
A little different than rhubarb crisp, this recipe for old fashioned rhubarb crunch has a brown sugar oatmeal crumble layer on the bottom as well as the top.
For the Crumble Layer
- 1 cup all purpose flour
- 3/4 cup quick cooking oatmeal
- 1 cup brown sugar
- 1/2 cup melted butter
- 1 teaspoon cinnamon
For the Filling
- 4 cups diced rhubarb
- 1 cup white sugar
- 1 cup water
- 2 tablespoons cornstarch
For Serving
- Vanilla ice cream or whipped cream
How to Make Rhubarb Crunch
Step 1: Preheat the Oven
Preheat your oven to 350° F.
Step 2: Prepare the Crumble Mixture
In a medium bowl:
1. Combine all purpose flour, quick cooking oatmeal, brown sugar, melted butter, and cinnamon.
2. Mix until crumbly.
3. Press half of this mixture into a greased baking pan (either 9 x 9 inch or 11 x 7 inch).
Step 3: Add the Rhubarb Filling
Spread the diced rhubarb evenly over the crumb layer in the pan.
Step 4: Make the Sauce
In a small saucepan:
1. Combine white sugar, water, and cornstarch.
2. Bring this mixture to a boil over low heat.
3. Stir continuously until it becomes thick and clear.
Step 5: Assemble and Bake
- Pour the sauce over the rhubarb in your baking pan.
- Top with the remaining crumb mixture.
- Bake for 1 hour until golden brown.
Step 6: Serve Your Dessert
Allow it to cool slightly before serving. Cut into squares and top with either vanilla ice cream or whipped cream for an extra touch of delight! Enjoy your warm Rhubarb Crunch!
How to Serve Rhubarb Crunch
Rhubarb Crunch is a delightful dessert that pairs beautifully with a variety of accompaniments. Whether you’re hosting a gathering or enjoying a quiet evening at home, here are some serving suggestions to elevate your experience.
Classic Ice Cream
- Vanilla ice cream adds a creamy richness that complements the tartness of the rhubarb.
- Try adding a scoop of cinnamon or caramel ice cream for an extra flavor twist.
Whipped Cream
- Freshly whipped cream provides a light and airy contrast to the crunchy topping.
- You can sweeten it slightly with powdered sugar or vanilla extract for added flavor.
Yogurt Parfait
- Layer Rhubarb Crunch with Greek yogurt for a tangy and nutritious twist.
- Add fresh berries on top for an extra burst of color and flavor.
Custard Sauce
- A warm custard sauce drizzled over Rhubarb Crunch brings a comforting warmth.
- This rich addition enhances the overall texture and taste of the dessert.
Fresh Fruit Salad
- A side of mixed fruit salad can provide a refreshing balance to the sweetness of Rhubarb Crunch.
- Choose seasonal fruits like strawberries, blueberries, or peaches for variety.
Tea or Coffee
- Pairing your dessert with a cup of tea or coffee can enhance the flavors.
- Consider herbal teas that complement the tartness, such as chamomile or mint.

How to Perfect Rhubarb Crunch
To achieve the perfect Rhubarb Crunch, consider these helpful tips that will enhance both flavor and texture.
- Use fresh rhubarb: Fresh rhubarb provides better flavor and texture compared to frozen options.
- Adjust sweetness: Depending on your preference, adjust the amount of sugar used based on the tartness of your rhubarb.
- Let it cool: Allowing the dessert to cool slightly before serving helps set the layers and enhances flavor.
- Experiment with spices: Adding nutmeg or ginger can elevate the taste profile beyond cinnamon alone.
- Serve warm: Enjoying Rhubarb Crunch warm maximizes its comforting qualities, especially when paired with ice cream.
- Store properly: Keep leftovers in an airtight container in the fridge for up to three days. Reheat before serving for best results.
Best Side Dishes for Rhubarb Crunch
Rhubarb Crunch shines even brighter when paired with complementary side dishes. Here are some great options to consider:
- Vanilla Bean Ice Cream: A classic choice that adds creaminess and balances out tart flavors beautifully.
- Cinnamon Sugar Biscotti: The crunchy texture and sweet-spicy flavor pair well with Rhubarb Crunch.
- Caramel Sauce: Drizzling homemade caramel sauce enhances sweetness while contrasting with the tartness of rhubarb.
- Pecan Pie Bars: These bars offer rich, nutty flavors that make an excellent contrast to fruity desserts.
- Lemon Sorbet: A refreshing palate cleanser that brightens up your dessert experience after each bite.
- Cheese Platter: Include soft cheeses like brie or goat cheese for a sophisticated pairing that balances sweetness with savory notes.
Common Mistakes to Avoid
When making Rhubarb Crunch, it’s easy to make mistakes that can affect the final dish. Here are some common pitfalls and how to avoid them.
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Using the wrong type of rhubarb: Make sure to use fresh, tart rhubarb. Avoid using overly mature stalks, as they may be too tough or bitter.
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Skipping the cornstarch: Cornstarch is crucial for thickening the filling. Don’t skip it; instead, mix it well with water before adding it to the rhubarb.
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Overmixing the crumble: When preparing the crumb mixture, mix just until combined. Overmixing can lead to a dense topping rather than a light, crunchy texture.
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Not letting it cool: Allow your Rhubarb Crunch to cool slightly before serving. This helps the layers set and makes it easier to cut into squares.
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Serving without accompaniment: For an extra special treat, don’t forget to serve your Rhubarb Crunch with vanilla ice cream or whipped cream for a delightful contrast in flavors.
Storage & Reheating Instructions
Refrigerator Storage
- Duration: Store in the refrigerator for up to 3 days.
- Container: Use an airtight container or cover tightly with plastic wrap.
- Cooling: Ensure it has cooled completely before refrigerating to maintain texture.
Freezing Rhubarb Crunch
- Duration: Can be frozen for up to 3 months.
- Container: Use a freezer-safe container or heavy-duty aluminum foil.
- Thawing: To thaw, place in the refrigerator overnight before reheating.
Reheating Rhubarb Crunch
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Oven: Preheat to 350°F and bake for about 15-20 minutes until warmed through. Cover with foil if browning too much.
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Microwave: Heat individual servings on medium power for 30-second intervals until warm.
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Stovetop: Place in a skillet on low heat, stirring occasionally until heated through. This helps retain moisture.
Frequently Asked Questions
Here are answers to some common questions about Rhubarb Crunch.
How do I know when my Rhubarb Crunch is done?
The Rhubarb Crunch is ready when the top is golden brown and the filling is bubbly around the edges. A cooking time of about 1 hour usually does the trick.
Can I use frozen rhubarb for this recipe?
Yes, you can use frozen rhubarb! Just thaw and drain excess liquid before using it in your Rhubarb Crunch recipe to prevent a soggy topping.
What can I substitute for white sugar?
You can use coconut sugar or honey as alternatives, but keep in mind that they may alter the flavor slightly. Adjust quantities based on sweetness preference.
What is the best way to serve Rhubarb Crunch?
Rhubarb Crunch tastes best when served warm alongside vanilla ice cream or whipped cream. The creamy texture complements the tartness beautifully!
Can I add other fruits to my Rhubarb Crunch?
Absolutely! Feel free to mix in strawberries or cherries for added sweetness and flavor complexity. Just keep an eye on sugar levels based on fruit sweetness.
Final Thoughts
Rhubarb Crunch is a delightful dessert that marries tartness with sweetness perfectly. Its versatility allows you to customize it with different fruits or toppings according to your taste preferences. Whether enjoyed warm with ice cream or chilled as leftovers, this recipe is sure to please any crowd—so give it a try!
Rhubarb Crunch
- Total Time: 1 hour 15 minutes
- Yield: Serves about 9
Description
Rhubarb Crunch is an irresistible dessert that puts a delightful spin on the traditional rhubarb crisp. Featuring a luscious brown sugar oatmeal crumble topping, this dish strikes the perfect balance between sweet and tangy flavors. The combination of fresh rhubarb and a rich crumble makes it an ideal choice for family gatherings, potlucks, or cozy nights at home. Serve it warm with a scoop of vanilla ice cream for an extra indulgent treat that everyone will love.
Ingredients
- 1 cup all-purpose flour
- 3/4 cup quick-cooking oatmeal
- 1 cup brown sugar
- 1/2 cup melted butter
- 1 teaspoon cinnamon
- 4 cups diced rhubarb
- 1 cup white sugar
- 1 cup water
- 2 tablespoons cornstarch
Instructions
- Preheat your oven to 350°F.
- In a medium bowl, mix flour, oatmeal, brown sugar, melted butter, and cinnamon until crumbly. Press half into a greased baking pan.
- Spread the diced rhubarb over the crust.
- In a saucepan, combine white sugar, water, and cornstarch; bring to a boil until thickened. Pour over rhubarb.
- Top with remaining crumble mixture and bake for 1 hour until golden brown.
- Allow to cool slightly before serving with vanilla ice cream or whipped cream.
- Prep Time: 15 minutes
- Cook Time: 60 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 square (106g)
- Calories: 248
- Sugar: 22g
- Sodium: 150mg
- Fat: 11g
- Saturated Fat: 6g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 36g
- Fiber: 2g
- Protein: 2g
- Cholesterol: 30mg





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