This delightful rhubarb crisp is a perfect balance of tart and sweet, making it an ideal dessert for any occasion. The combination of tender rhubarb and a crunchy oat topping creates a comforting treat that is sure to please your taste buds. Whether you're enjoying it warm out of the oven or chilled the next day, this crisp is a wonderful way to showcase the unique flavor of rhubarb.
If you're not familiar with rhubarb, it's a tart vegetable that is often used in desserts. You can usually find it in the produce section of your supermarket, especially during the spring and early summer months. Make sure to look for firm, crisp stalks with a deep red color. If you can't find fresh rhubarb, you might be able to find it frozen. Everything else in this recipe is quite common and should be easy to locate.

Ingredients for Rhubarb Crisp Recipe
Rhubarb: A tart vegetable that adds a unique flavor to the crisp.
Sugar: Used to sweeten the rhubarb and balance its tartness.
Flour: Helps to thicken the rhubarb mixture and is also used in the topping.
Oats: Adds a crunchy texture to the topping.
Brown sugar: Provides a rich, caramel-like sweetness to the topping.
Butter: Melted butter binds the topping ingredients together and adds richness.
Technique Tip for This Recipe
To enhance the flavor of your rhubarb crisp, consider macerating the rhubarb with the sugar and flour mixture for about 30 minutes before spreading it in the baking dish. This allows the rhubarb to release its juices and blend more thoroughly with the sugar, resulting in a more cohesive and flavorful filling. Additionally, for a more complex topping, you can add a pinch of cinnamon or nutmeg to the oats mixture to give it a warm, spiced note.
Suggested Side Dishes
Alternative Ingredients
rhubarb - Substitute with strawberries: Strawberries provide a similar tartness and sweetness balance, making them a good alternative.
rhubarb - Substitute with apples: Apples offer a different texture but can mimic the tartness when combined with a bit of lemon juice.
sugar - Substitute with honey: Honey can provide the necessary sweetness while adding a unique flavor profile.
sugar - Substitute with maple syrup: Maple syrup adds a rich, caramel-like sweetness that complements the other ingredients.
flour - Substitute with cornstarch: Cornstarch can thicken the mixture similarly to flour, though you might need to use less.
flour - Substitute with almond flour: Almond flour can provide a nutty flavor and is a good gluten-free option.
oats - Substitute with quinoa flakes: Quinoa flakes offer a similar texture and are a good gluten-free alternative.
oats - Substitute with crushed nuts: Crushed nuts can add a crunchy texture and a different flavor profile.
brown sugar - Substitute with coconut sugar: Coconut sugar has a similar texture and a slightly different but complementary flavor.
brown sugar - Substitute with date sugar: Date sugar provides a natural sweetness and a hint of caramel flavor.
butter - Substitute with coconut oil: Coconut oil can mimic the richness of butter and adds a slight coconut flavor.
butter - Substitute with margarine: Margarine can provide a similar texture and moisture content as butter.
flour - Substitute with whole wheat flour: Whole wheat flour can add a slightly different texture and a bit more nutritional value.
flour - Substitute with gluten-free flour blend: A gluten-free flour blend can provide a similar texture for those avoiding gluten.
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How to Store or Freeze Your Rhubarb Crisp
Allow the rhubarb crisp to cool completely at room temperature. This helps to set the crisp topping and makes it easier to handle.
Once cooled, cover the baking dish tightly with plastic wrap or aluminum foil. Alternatively, transfer the rhubarb crisp to an airtight container.
Store the covered rhubarb crisp in the refrigerator. It will keep well for up to 3-4 days, maintaining its delightful texture and flavor.
For longer storage, consider freezing the rhubarb crisp. First, ensure it is completely cooled. Then, wrap the entire baking dish in a double layer of plastic wrap followed by a layer of aluminum foil. This double wrapping helps to prevent freezer burn.
If you prefer, you can also portion the rhubarb crisp into individual servings before freezing. Place each portion in a separate airtight container or freezer bag. Label with the date to keep track of freshness.
When ready to enjoy, thaw the rhubarb crisp in the refrigerator overnight. For a quicker option, you can thaw it at room temperature for a few hours.
To reheat, preheat your oven to 350°F (175°C). Place the thawed rhubarb crisp in an oven-safe dish and cover with aluminum foil. Heat for about 15-20 minutes or until warmed through. Remove the foil for the last 5 minutes to crisp up the topping.
For a single serving, you can use the microwave. Place the portion in a microwave-safe dish and heat on medium power for 1-2 minutes, checking frequently to avoid overheating.
Enjoy your rhubarb crisp warm, perhaps with a scoop of vanilla ice cream or a dollop of whipped cream for an extra treat.
How to Reheat Leftovers
Preheat your oven to 350°F (175°C). Place the rhubarb crisp in an oven-safe dish, cover it with aluminum foil to prevent the top from over-browning, and bake for about 15-20 minutes until it’s warmed through and the crisp topping is crunchy again.
For a quicker option, use the microwave. Place a portion of the rhubarb crisp in a microwave-safe dish. Heat on medium power for 1-2 minutes, checking every 30 seconds to ensure it heats evenly. Be cautious, as the fruit filling can become very hot.
If you have an air fryer, preheat it to 350°F (175°C). Place the rhubarb crisp in an air fryer-safe dish and heat for about 5-7 minutes. This method helps maintain the crisp topping while warming the rhubarb filling.
On the stovetop, use a skillet over medium-low heat. Add a small amount of butter or oil to the pan, place the rhubarb crisp in the skillet, and cover it with a lid. Heat for about 5-10 minutes, stirring occasionally to ensure even warming.
For a toaster oven, preheat to 350°F (175°C). Place the rhubarb crisp in an oven-safe dish, cover with foil, and heat for about 10-15 minutes until warmed through and the topping is crisp.
Best Tools for This Recipe
Oven: Used to bake the rhubarb crisp at 375°F (190°C) until the top is golden brown and the rhubarb is tender.
Mixing bowl: Needed to combine the chopped rhubarb, sugar, and flour, as well as to mix the oats, brown sugar, melted butter, and flour.
Baking dish: Used to spread the rhubarb mixture evenly and to bake the crisp.
Measuring cups: Essential for accurately measuring the rhubarb, sugar, oats, brown sugar, and flour.
Measuring spoons: Used to measure the 2 tablespoons of flour.
Knife: Needed to chop the rhubarb into small pieces.
Cutting board: Provides a surface to safely chop the rhubarb.
Wooden spoon: Useful for mixing the rhubarb mixture and the oat topping.
Spatula: Helps to spread the rhubarb mixture evenly in the baking dish and to sprinkle the oat topping over it.
Cooling rack: Allows the rhubarb crisp to cool slightly before serving.
How to Save Time on Making This Recipe
Prepare ingredients in advance: Chop the rhubarb and measure out the sugar, flour, and oats the night before to save time on the day of baking.
Use a food processor: Quickly combine the oats, brown sugar, butter, and flour for the topping by pulsing them in a food processor until crumbly.
Preheat the oven early: Turn on the oven as soon as you start preparing the ingredients so it reaches the desired temperature by the time you're ready to bake.
Double the recipe: Make a larger batch and freeze half for a quick dessert option in the future.

Rhubarb Crisp Recipe
Ingredients
Filling
- 4 cups rhubarb, chopped
- 1 cup sugar
- 2 tablespoons flour
Topping
- 1 cup oats
- 1 cup brown sugar
- 0.5 cup butter, melted
- 1 cup flour
Instructions
- Preheat oven to 375°F (190°C).
- In a mixing bowl, combine chopped rhubarb, sugar, and 2 tablespoons of flour. Mix well and spread evenly in a baking dish.
- In another bowl, mix oats, brown sugar, melted butter, and 1 cup of flour until crumbly. Sprinkle over the rhubarb mixture.
- Bake for 45 minutes or until the top is golden brown and the rhubarb is tender.
- Let it cool slightly before serving. Enjoy!
Nutritional Value
Keywords
Suggested Appetizers and Main Courses
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