Rhubarb Crunch is a delightful dessert that combines the tartness of rhubarb with a sweet and crunchy topping. This old-fashioned recipe stands out with its brown sugar oatmeal crumble that layers both the bottom and the top, creating a delicious contrast in texture. Perfect for family gatherings, potlucks, or even just a cozy night in, this dessert pleases every palate.
Why You’ll Love This Recipe
- Delicious Flavor: The balance of tart rhubarb and sweet crumble makes each bite irresistible.
- Easy to Prepare: With simple steps and common ingredients, you can whip this up in no time.
- Versatile Serving Options: Enjoy it warm with vanilla ice cream or chilled with whipped cream for a refreshing treat.
- Perfect for Any Occasion: Whether it’s a holiday or a casual weekday dinner, Rhubarb Crunch is always a hit.
- Great for Leftovers: This dessert keeps well and tastes even better the next day!
Tools and Preparation
Before you start making Rhubarb Crunch, gather your kitchen tools to streamline the process.
Essential Tools and Equipment
- 9 x 9 inch or 11 x 7 inch baking pan
- Mixing bowls
- Small saucepan
- Measuring cups and spoons
- Spoon or spatula
Importance of Each Tool
- Baking pan: Essential for holding your Rhubarb Crunch as it bakes to perfection.
- Mixing bowls: These help in combining the ingredients evenly for a consistent flavor.
- Small saucepan: Needed to create the thick syrup that enhances the rhubarb’s natural flavor.
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
- 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. This ensures that your Rhubarb Crunch bakes evenly.
Step 2: Prepare the Crumble Mixture
In a medium bowl, combine:
1. 1 cup all purpose flour
2. 3/4 cup quick cooking oatmeal
3. 1 cup brown sugar
4. 1/2 cup melted butter
5. 1 teaspoon cinnamon
Mix until crumbly. Press half of this mixture into your greased baking pan.
Step 3: Add the Rhubarb Filling
Spread 4 cups diced rhubarb evenly over the crust in your baking pan.
Step 4: Make the Syrup
In a small saucepan:
1. Combine 1 cup white sugar, 1 cup water, and 2 tablespoons cornstarch.
2. Bring to a boil over low heat while stirring continuously until thick and clear.
3. Pour this syrup over the rhubarb in the baking pan.
Step 5: Top with Remaining Crumble
Sprinkle the remaining crumble mixture on top of your layered filling.
Step 6: Bake
Bake in your preheated oven for about 1 hour. Once done, let it cool slightly before serving.
To serve, cut into squares and add vanilla ice cream or whipped cream on top. Best served warm for an unforgettable dessert experience!
How to Serve Rhubarb Crunch
Rhubarb Crunch is a delightful dessert that pairs well with various toppings and side dishes. Here are some serving suggestions to enhance your experience.
Top with Ice Cream
- Vanilla Ice Cream: The classic choice, vanilla ice cream complements the tartness of rhubarb perfectly.
- Chocolate Ice Cream: For a rich twist, chocolate ice cream adds a decadent flavor that balances the crunch.
Add Whipped Cream
- Freshly Whipped Cream: Light and airy, freshly whipped cream elevates the dessert’s creaminess.
- Flavored Whipped Cream: Consider adding vanilla extract or cinnamon for an extra touch of flavor.
Serve with Fresh Fruit
- Sliced Strawberries: Fresh strawberries add a burst of sweetness and color when served alongside Rhubarb Crunch.
- Blueberries: Their juiciness contrasts nicely with the crunchy topping of the dessert.
Pair with Coffee or Tea
- Hot Coffee: A warm cup of coffee enhances the comforting flavors of Rhubarb Crunch, making it perfect for breakfast or brunch.
- Herbal Tea: A soothing herbal tea can provide a refreshing complement to this sweet treat.

How to Perfect Rhubarb Crunch
To achieve the best results with your Rhubarb Crunch, consider these helpful tips:
- Use fresh rhubarb: Fresh rhubarb offers the best flavor and texture; avoid using frozen if possible.
- Adjust sweetness: Depending on your taste, feel free to modify the amount of sugar in the recipe to balance out the tartness.
- Don’t skip the cinnamon: Adding cinnamon enhances the overall flavor profile and gives it a warm, inviting aroma.
- Cool before serving: Letting it cool slightly allows the filling to set, making it easier to cut into squares.
- Experiment with toppings: Try different ice creams or flavored whipped creams for unique twists on serving options.
Best Side Dishes for Rhubarb Crunch
Rhubarb Crunch pairs wonderfully with various side dishes that can complement its flavors. Here are some great options:
- Vanilla Yogurt: A creamy addition that adds tanginess and balances out the sweetness of Rhubarb Crunch.
- Grilled Peaches: Sweet grilled peaches provide a juicy contrast and enhance the overall fruitiness of your meal.
- Cinnamon Roll Casserole: This cozy dish adds warmth and comfort, making it a delightful companion to your dessert.
- Fruit Salad: A light fruit salad can refresh your palate between bites of rich Rhubarb Crunch.
- Cheese Platter: A selection of cheeses can offer savory notes that beautifully contrast with the sweet dessert.
- Nutty Granola: Sprinkling some nutty granola on top adds an extra crunch and complements the oat crumble in your dessert.
Common Mistakes to Avoid
When making Rhubarb Crunch, it’s easy to make a few missteps. Here are some common mistakes and how to avoid them.
- Using the wrong type of rhubarb: Always use fresh, tart rhubarb for the best flavor. Avoid using overripe or wilted stalks, as they can affect the taste and texture.
- Not measuring ingredients accurately: Precision is key in baking. Make sure to measure all ingredients carefully, especially the sugars and cornstarch, to ensure a balanced sweetness and proper thickening.
- Skipping the cooling time: Allowing your Rhubarb Crunch to cool slightly before serving helps it set properly. If you cut into it too soon, it may be too runny and not hold its shape.
- Overbaking or underbaking: Keep an eye on your dessert while it’s baking. Overbaking can result in a dry crunch, whereas underbaking can leave the filling watery. Bake until bubbly and golden brown.
- Not adding enough spice: Cinnamon enhances the flavors of rhubarb beautifully. Don’t skimp on spices; adjust according to your taste preferences for a more flavorful dish.
Storage & Reheating Instructions
Refrigerator Storage
- Store leftovers in an airtight container for up to 3 days.
- Let the Rhubarb Crunch cool completely before sealing.
Freezing Rhubarb Crunch
- Wrap tightly in plastic wrap and then place it in a freezer-safe container.
- It can be frozen for up to 3 months for best quality.
Reheating Rhubarb Crunch
- Oven: Preheat to 350°F and bake for about 15-20 minutes until warmed through.
- Microwave: Heat individual portions on high for 30-60 seconds or until heated through.
- Stovetop: Place in a non-stick skillet over low heat, stirring occasionally until warmed.
Frequently Asked Questions
Can I use frozen rhubarb for Rhubarb Crunch?
Yes, you can use frozen rhubarb. Just make sure to thaw it completely and drain excess moisture before using.
How do I know when my Rhubarb Crunch is done?
Your dessert is ready when the topping is golden brown and the filling is bubbling around the edges.
Can I customize my Rhubarb Crunch?
Absolutely! Feel free to add nuts or other fruits like strawberries or cherries for added flavor and texture.
What should I serve with Rhubarb Crunch?
Rhubarb Crunch pairs perfectly with vanilla ice cream or whipped cream to balance its tartness.
Final Thoughts
This Rhubarb Crunch recipe is a delightful blend of tartness and sweetness that makes it perfect for any occasion. Its versatility allows you to customize it with different fruits or spices based on your preference. We encourage you to try this delicious treat, whether as a comforting dessert after dinner or a sweet addition to a potluck gathering!
Rhubarb Crunch
- Total Time: 1 hour 20 minutes
- Yield: Approximately 12 servings 1x
Description
Rhubarb Crunch is a classic dessert that beautifully balances the tartness of fresh rhubarb with a sweet and crunchy brown sugar oatmeal topping. This simple yet delightful recipe features a double layer of crumble, making it a beloved treat for family gatherings, potlucks, or cozy evenings at home. Serve it warm with a scoop of vanilla ice cream or chilled with whipped cream for an irresistible dessert experience. With its ease of preparation and scrumptious flavor combination, Rhubarb Crunch is sure to please everyone at the table.
Ingredients
- 1 cup all-purpose flour
- 3/4 cup quick cooking oatmeal
- 1 cup brown sugar
- 1/2 cup melted butter
- 4 cups diced rhubarb
- 1 cup white sugar
- 2 tablespoons cornstarch
Instructions
- Preheat your oven to 350°F.
- In a bowl, mix flour, oatmeal, brown sugar, melted butter, and cinnamon until crumbly. Press half into a greased baking pan.
- Spread diced rhubarb over the crust.
- In a saucepan, combine white sugar, water, and cornstarch; boil until thickened. Pour over rhubarb.
- Top with remaining crumble mixture.
- Bake for about 1 hour until golden brown and bubbly. Let cool slightly before serving.
- Prep Time: 20 minutes
- Cook Time: 60 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 square (100g)
- Calories: 290
- Sugar: 25g
- Sodium: 150mg
- Fat: 12g
- Saturated Fat: 7g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 42g
- Fiber: 3g
- Protein: 2g
- Cholesterol: 30mg





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