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Sweetly tart and tender rhubarb is baked to perfection under a crisp topping of brown sugar and oats in this easy Rhubarb Crisp.

oatmeal crisp with rhubarb in white dish next to blue napkin

Rhubarb Crisp with Oats

I’ve been waiting impatiently for this summer’s rhubarb to make an appearance in the grocery store or farmer’s market, so I nearly squealed with joy when I spied it this week. Summer is finally here!

Those bright red stalks of rhubarb are as elusive as can be some years. I could hardly wait to start baking this rhubarb crisp with oats as soon as I got back to the house.

Easy Rhubarb Crisp

This crisp has a classic toasted oat topping that is flavored with cinnamon and sugar. The flavors are a classic combination that work so well with a fruit filling.

I often adapt a crisp topping to suit specific ingredients but found that I liked this rhubarb crisp recipe with the classic brown sugar and cinnamon combination. Let me know how you like it best, if you decide to change it up.

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rhubarb tossed with brown sugar and cinnamon

Recipe for Rhubarb Crisp

You’ll need the following ingredients to make this recipe:

  • rhubarb
  • orange or lemon juice
  • brown sugar and cinnamon
  • cornstarch, salt, and flour
  • old-fashioned oats
  • butter
oatmeal crisp topping

To begin, preheat the oven to 350°F. Grease an 8 or 9-inch baking dish with butter. Then add the rhubarb, lemon juice, brown sugar, cornstarch, and salt to a medium bowl. Stir to coat, then set aside.

In another bowl, mix together the oats, flour, brown sugar, cinnamon, and butter. Pour the fruit into the greased pan, then top with the oat mixture.

Bake for 28-30 minutes, until the crust has browned and the fruit is bubbling. Let cool for 10 minutes before serving warm, topped with vanilla ice cream or whipped cream.

vintage spoon in rhubarb crisp baking dish with blue towel

For those of you who simply cannot get enough rhubarb when it’s in season, then you’ve come to the right place. These Rhubarb Bars get rave reviews!

Old-Fashioned Rhubarb Pie has a classic custard-style base, exactly the way that grandma used to make. And, you won’t believe how easy it is to make a Rhubarb Dump Cake.

serving of fruit crisp tossed with melting vanilla ice cream

Streusel-topped Rhubarb Muffins are fabulous too. They freeze beautifully and they’re a great treat with breakfast or with a cup of tea or coffee in the afternoon.

If you have never tried a cream cheese filling or topping on a rhubarb dessert, I strongly recommend you make a batch of Rhubarb Cookies next. The frosting is optional, but I think it really kicks them into high gear.

If you think rhubarb is just for baked goods, you will be pleasantly surprised by the sweet, slightly tart flavor of this versatile Rhubarb Sauce.

4 from 2 votes

Rhubarb Crisp

Avatar photoMary Younkin
Sweetly tart and tender rhubarb is baked to perfection under a crisp topping of brown sugar and oats in this easy Rhubarb Crisp.
Prep Time: 10 minutes
Cook Time: 30 minutes
Total Time: 40 minutes
Servings: 8
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Ingredients 

  • 6 cups rhubarb cut into 1-inch pieces, about 2 pounds
  • 2 tablespoons orange or lemon juice
  • ¾ cup light brown sugar
  • 2 tablespoons cornstarch
  • ¼ teaspoon kosher salt

Crisp Topping Ingredients

  • 1 cup old-fashioned oats
  • 1 cup all-purpose flour
  • ½ cup light brown sugar
  • ½ teaspoon ground cinnamon
  • ½ cup, plus 2 tablespoons butter melted

Instructions 

  • Preheat the oven to 350°F. Grease an 8 or 9-inch baking dish (about 2-2½ quart size) with butter. Combine the rhubarb, lemon juice, sugar, cornstarch, and salt in a medium bowl. Stir to coat, then set aside.
  • In another bowl, stir together the oats, flour, brown sugar, cinnamon, and butter. Pour the fruit into the greased pan, then sprinkle the oat mixture on top of the fruit.
  • Bake for 28-30 minutes, until the crust has browned and the fruit mixture is bubbling. Let cool for 10 minutes before serving warm, topped with vanilla ice cream or whipped cream.

Nutrition

Calories: 343 kcal | Carbohydrates: 56 g | Protein: 3 g | Fat: 13 g | Saturated Fat: 8 g | Polyunsaturated Fat: 1 g | Monounsaturated Fat: 3 g | Trans Fat: 0.5 g | Cholesterol: 32 mg | Sodium: 183 mg | Potassium: 359 mg | Fiber: 3 g | Sugar: 35 g | Vitamin A: 472 IU | Vitamin C: 9 mg | Calcium: 118 mg | Iron: 1 mg

Nutrition information is automatically calculated, so should only be used as an approximation.

scoop of vanilla ice cream served over a fruit crisp with rhubarb

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Recipe Rating




6 Comments

  1. Larry says:

    4 stars
    Good recipe, only change would be to hold off mixing the melted butter to the oat mix. Sprinkle the oat mix over the fruits THEN pour the melted butter over the oats.
    Result may result in a crispier “crisp”.

    1. Mary says:

      Either method will work nicely. I’m glad you enjoyed the crisp, Larry!

  2. miranda skrypnick says:

    Can frozen rhubarb be used I this dish

    1. Mary says:

      Yes, frozen will work nicely.

  3. Penny Remington says:

    4 stars
    Haven’t made this crisp yet…but am about to. I’ve only one suggestion. I’ve been making rhubarb custard pie for yrs and discovered nutmeg. In my opinion…it beats cinnamon hands down.

    1. Mary says:

      I hope you love the rhubarb crisp, Penny! Enjoy, and happy baking.