Rhubarb crisp is a simple, old-fashioned dessert. This crisp recipe is a perfect balance between sweet and tart with a saucy rhubarb filling and a buttery oat crisp topping.

plated Rhubarb Crisp with ice cream

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Holly’s Recipe Highlights

  • Flavor: The perfect mix of sweet and tart rhubarb with a warm, buttery oat topping.
  • Skill Level: Beginner-friendly and very forgiving.
  • Time-Saving Tip: Prep it ahead and refrigerate up to 3 days before baking.
  • Serving Suggestions: Don’t forget the ice cream and a dollop of whipped cream.  
Rhubarb Crisp ingredients with labels

Ingredient Notes

  • Rhubarb: You can use frozen or fresh rhubarb for this recipe. If using frozen rhubarb, add 1 tablespoon of extra flour to the filling and do not thaw it first.
  • Topping: Flour helps thicken the juices so the filling stays saucy instead of watery. Old-fashioned oats give the best crisp texture. Quick oats can work, but the topping will be softer.
  • Variations: Try a strawberry rhubarb crisp by replacing half the rhubarb with strawberries and adding a little extra thickener. For a warm twist, add a pinch of ground ginger to the filling. For a coconut-free version, you can simply leave it out with no other changes needed.

How to Prepare Rhubarb for Crisp

  • When picking rhubarb, pull the stalk from the plant close to the root. Cut off the leaves and discard them.
  • You do not have to peel rhubarb; however, if the stalk is quite thick, you can peel the tougher exterior if you’d like. I personally don’t usually bother peeling it.

You can eat the green stalk; however, the leaves are poisonous to eat, so discard them (for humans and animals alike).

Rhubarb Crisp being prepared in a white baking dish

How to Make Rhubarb Crisp

  1. Prep the rhubarb and toss it with sugar, flour, and cinnamon.
  2. Spread it into the baking dish.
  3. Mix the oat topping until crumbly and sprinkle it over the fruit.
  4. Bake (full recipe below).

Best Crisp Tips

  • Cut Stalks Evenly: This helps the rhubarb cook at the same rate.
  • Thicken Juicy Rhubarb: Add a bit more flour or use cornstarch if needed.
  • Bake Until Bubbly: The filling should be bubbling at the edges.
  • Do Not Skip The Rest: Cooling helps the filling set before serving.
  • Make Ahead: Assemble the crisp and refrigerate before baking.
  • Top It: Top with vanilla ice cream or whipped cream for dessert. Use vanilla yogurt when enjoying leftovers for breakfast (what, it’s fruit and oats ;)).
Rhubarb Crisp prepared golden and brown in a baking dish

Leftovers Worth Keeping

Cover leftovers and refrigerate for up to 4 days. Reheat single servings in the microwave, or warm larger portions in a 350°F oven for 10 to 15 minutes.

To make ahead, assemble the crisp and refrigerate it for up to 3 days before baking.

Freeze it for up to 3 months. Thaw in the fridge overnight and reheat in the oven before serving.

More Sweet-Tart Fruit Desserts

Did you enjoy this Rhubarb Crisp Recipe? Leave a comment and rating below.

image of Everyday Comfort cookbook by Holly Nilsson of Spend With Pennies plus text
rhubarb crisp in a baking dish
4.98 from 486 votes

Rhubarb Crisp

Servings 8 servings
Sweet-tart rhubarb bakes into a jammy filling under a buttery oat topping with just the right amount of cinnamon. It is easy, cozy, and perfect served warm.
Servings 8 servings
Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
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Ingredients  

  • 6 cups rhubarb
  • cup granulated sugar
  • 3 tablespoons all-purpose flour
  • ½ teaspoon cinnamon

Crumb Topping

  • ¾ cup rolled oats
  • ¾ cup brown sugar packed
  • cup all-purpose flour
  • cup cold unsalted butter
  • cup coconut flakes or chopped nuts, optional
  • ½ teaspoon cinnamon

Instructions 

  • Preheat the oven to 375°F.
  • Rinse the rhubarb to remove dirt or debris and discard the leaves. Cut into ½-inch pieces. If the stalks are very thin, cut them into ¾-inch pieces.
  • In a medium bowl, combine rhubarb, sugar, 3 tablespoons flour, and cinnamon. Toss well to coat and transfer to the baking dish.
  • In a medium bowl, combine oats, brown sugar, ⅓ cup flour, butter, and cinnamon with a fork or pastry cutter until it is well mixed and it begins to stick together. Sprinkle the topping over the rhubarb mixture.
  • Bake for 30 to 35 minutes or until the rhubarb filling is bubbly and the topping is golden brown.
  • Cool for at least 10 minutes before serving. Top with a scoop of vanilla ice cream or cream.

Notes

To make strawberry rhubarb crisp: Use 3 cups strawberries and 3 cups rhubarb. Increase flour in the filling to ⅓ cup.
Additional spices like ground ginger can be added to the fruit filling.
Flour in the filling can be replaced with 1 ½ tablespoons cornstarch.
This dessert can be prepared and refrigerated for 3 days before baking. 
I often bake this recipe in the afternoon and leave it at room temperature to cool. Place it in the oven for about 15 minutes before serving to warm.
Keep leftovers in an airtight container in the refrigerator for up to 4 days and in the freezer for 3 months. 
4.98 from 486 votes

Nutrition Information

Calories: 317 | Carbohydrates: 55g | Protein: 2g | Fat: 10g | Saturated Fat: 6g | Cholesterol: 22mg | Sodium: 85mg | Potassium: 316mg | Fiber: 3g | Sugar: 40g | Vitamin A: 350IU | Vitamin C: 7.3mg | Calcium: 91mg | Iron: 1.1mg

Nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.

Course Dessert
Cuisine American
slice of Rhubarb Crisp with writing
Rhubarb Crisp with ice cream and a title
baked Rhubarb Crisp in the dish and a slice on a plate with ice cream with a title
Rhubarb Crisp with buttery crumble and writing

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About the author

Holly Nilsson is the creator of Spend With Pennies, where she creates easy, comforting recipes made for real life. She is also the author of “Everyday Comfort,” which promises to inspire even more hearty, home-cooked meals.
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4.98 from 486 votes (405 ratings without comment)

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Comments

  1. It seemed to need maybe a touch of salt. And maybe a bit more sugar (I didn’t have quite the full amount of brown sugar for the topping and this may have been the problem).

    I might add some nuts to the topping next time.3 stars

  2. You forgot to add the salt. I put in 1/2 teaspoon in the second mixture, the one you put on top. It came out just right.3 stars

  3. Excellent recipe. Have made is several times. I substitute a cup of apples and strawberries to balance the fruit flavors.5 stars

  4. This is my “GO TO” Recipe for Rhubarb Crisp! Love it! Have fixed it multiple times with the same results that all that try it wants seconds. What better compliment!5 stars

  5. I didn’t have enough rhubarb so I replaced 2 cups rhubarb with 2 1/2 cups sliced apples. I also used. gluten free flour to see if I could make this recipe for my daughter. The flour was a home made version which I found on-line. The recipe turned out superb…now I am going out to find more rhubarb. Thank you for a wonderful recipe!5 stars

  6. Hi Holly…I am just about to make your rhubarb crisp recipe..but I have to share this with you.
    NEVER Cut the root end of rhubarb….that is where the sugar is..
    Just pull and then clean…no cutting!
    Just thought I would share this bit of info given to me by my sweet Aunt.
    Cheers ,

      1. Just looking at your recipes I love them already.. can’t wait to try zucchini sticks and the rhubarb crisp!!

  7. This was first served to me in ‘Montana and has been one of those deserts that I crave very regularly I do not live where rhubarb can be grown but get fresh any time that I can just for this receipt. It is one that I will cook any time that I have the rhubarb for any of my guest and then for my self when there is no guest excuse. LOVE this one5 stars

  8. Easy peasy…you can eyeball amounts (like I did) and it is great. Can’t really screw this up…much to love, and a bonus this afternoon as I contemplated freezing my fresh stalks. Nah – I’m worth it. Yummy!5 stars

  9. Best rhubarb recipe that I have made. I will be doubling the next batch so I can share more. The topping was the best tasting that I have ever seen.5 stars

  10. Holly,
    I’m a 60 year old single dad living in Wild Rose, WI. I made your dessert for my 28 year old daughters family including my 3 1/2 year old grandson and they loved it. Thanks for sharing. Sincerely, Randy5 stars

  11. This has always been a favourite in our family. Sweeten it up with a handful of raisins. They go well with the rhubarb and absorb some of the liquid so it’s not quite so sloppy.

    1. Yes, I add a handful of any dried fruit: cranberries, blueberries. This time I added golden berries which are tart and lovely. I also add vanilla to the fruit, some squeezed orange juice and and rind. I love cardamom, so added some of that to the filling, subbing some apple and frozen blueberries for rhubarb. I used 1/2 butter and coconut oil for the topping. Next time I will sub some sugar for maple syrup or coconut sugar. All fun!5 stars

  12. While the recipe is wonderful, I need to harvesting rhubarb. Never “cut” the stalks from the plant. That not only limits the regrowth, but it can damage adjoining small tender stalks. Grasp the stalks close to the base and pull them straight out slowly. They’ll pop out, leaving the plant healthy and producing more! I learned this many years ago from two old sisters, who taught me much about gardening–they even shared their secret spaghetti sauce recipe!

  13. I’ve made this recipe twice now and it has been a Big Hit! Very similar to the apple crisp I make. It’s Quick, Easy and Delicious! Definitely 5 Stars! Thanks for sharing!5 stars

  14. I doubled the topping portion of the recipe, added vanilla to it, and got rave reviews! Great recipe – helpful tips!!5 stars

  15. This recipe was very good. I baked the rhubarb with some sugar in dish covered with foil for 5mins while I was making the crisp. The rhubarb stalks were quite thick so this ensured it was nicely cooked. I didn’t bother about the flour because the amount of liquid coming out of the rhubarb was fine and bubbled up a little round the edges. Very delicious. Thank you for a lovely recipe.5 stars