This Easy Rhubarb Crisp is the ultimate spring dessert, featuring a tangy fruit filling and a golden, buttery oat topping. It is a simple, crowd-pleasing recipe that highlights the unique flavor of rhubarb in every bite, making it the perfect treat for any occasion.
Why You Will Love This Recipe
This Easy Rhubarb Crisp recipe is a must-try for anyone who loves the classic combination of tart fruit and sweet, crunchy toppings. Here is why it will quickly become a favorite in your kitchen:
- Quick Preparation: You can have this dessert prepped and ready for the oven in just 15 minutes.
- Seasonal Flavor: It is the best way to celebrate the arrival of fresh garden rhubarb during the spring and summer months.
- Simple Ingredients: This recipe uses basic pantry staples that you likely already have on hand.
- Perfect Texture: The contrast between the softened, jammy rhubarb and the crisp oat topping is incredibly satisfying.
Ingredients
- Fresh rhubarb stalks, sliced into 1/2-inch pieces
- Granulated sugar to sweeten the tart filling
- All-purpose flour for the topping and thickening the fruit juices
- Old-fashioned rolled oats for a hearty, crunchy texture
- Light brown sugar to add a hint of caramel flavor to the topping
- Unsalted butter, cold and cut into small cubes
- Ground cinnamon for a warm, aromatic spice
- A pinch of salt to balance the sweetness
Step-by-Step Instructions
- Preheat your oven to 375°F (190°C) and lightly grease an 8×8-inch baking dish with butter or non-stick spray.
- In a large mixing bowl, toss the sliced rhubarb with the granulated sugar and one tablespoon of flour until the fruit is evenly coated.
- Spread the rhubarb mixture into the bottom of the prepared baking dish in an even layer.
- In a separate medium bowl, combine the rolled oats, brown sugar, remaining flour, cinnamon, and salt.
- Add the cold, cubed butter to the oat mixture. Use a pastry cutter or your fingers to work the butter in until the mixture resembles coarse crumbs.
- Sprinkle the oat topping evenly over the rhubarb filling, ensuring it covers the fruit completely.
- Bake in the preheated oven for 35 to 45 minutes, or until the topping is golden brown and the rhubarb juices are bubbling around the edges.
- Remove from the oven and allow the crisp to cool for at least 10 minutes before serving to let the filling set.

Expert Tips / Pro Tips
To achieve the best Easy Rhubarb Crisp, ensure your butter is very cold when mixing the topping; this creates those desirable crunchy clusters. If your rhubarb is particularly green and extra tart, you can add an extra two tablespoons of sugar to the filling. For a more visual appeal, try to select the reddest rhubarb stalks available at the market, as they provide a beautiful pink color once baked.
You can easily customize this recipe to suit your preferences. If you enjoy a fruit blend, try making a Strawberry Rhubarb Crisp by substituting half of the rhubarb with sliced fresh strawberries. For a gluten-free version, use a 1:1 gluten-free all-purpose flour blend and ensure your oats are certified gluten-free. You can also add a half-cup of chopped pecans or walnuts to the topping for extra crunch.
Serving Suggestions
This Easy Rhubarb Crisp is best served warm from the oven. For the ultimate experience, top each serving with a generous scoop of vanilla bean ice cream, which melts beautifully into the warm fruit. Alternatively, a dollop of fresh whipped cream or a drizzle of heavy cream provides a lighter but equally delicious finish.
Store any leftover crisp in an airtight container in the refrigerator for up to 4 days. To maintain the texture of the topping, it is best to reheat individual portions in the oven or toaster oven at 350°F until warmed through. You can also freeze the baked crisp for up to 3 months. Simply thaw it in the refrigerator overnight before reheating as directed.
Nutrition Information
| Nutrient | Amount Per Serving |
|---|---|
| Calories | 295 kcal |
| Total Fat | 11g |
| Saturated Fat | 7g |
| Cholesterol | 30mg |
| Sodium | 45mg |
| Total Carbohydrates | 48g |
| Dietary Fiber | 3g |
| Sugars | 28g |
| Protein | 3g |
FAQ
Do I need to peel the rhubarb before using it?
No, there is no need to peel rhubarb stalks. The skin is thin and softens perfectly during the baking process, adding color and flavor to the dish.
Can I use frozen rhubarb for this crisp?
Yes, frozen rhubarb works well. Be sure to thaw it and drain off the excess liquid before tossing it with the sugar and flour to prevent the crisp from becoming soggy.
Is rhubarb safe to eat?
The stalks of the rhubarb plant are perfectly safe and delicious to eat. However, you must always discard the leaves, as they contain high levels of oxalic acid and are toxic.
How do I know when the crisp is finished baking?
The crisp is done when the oat topping is a deep golden brown and you can see the fruit juices bubbling vigorously around the sides of the pan.

Easy Rhubarb Crisp
Ingredients
Method
- Preheat your oven to 375°F (190°C) and lightly grease a 9×13 inch baking dish.
- In a large mixing bowl, toss the chopped rhubarb with the granulated sugar, 2 tablespoons of flour, and vanilla extract until the fruit is evenly coated.
- Spread the rhubarb mixture evenly into the bottom of the prepared baking dish.
- In a separate medium bowl, combine the 1 cup of flour, rolled oats, brown sugar, and ground cinnamon.
- Pour the melted butter over the oat mixture and stir with a fork until the mixture is crumbly and well combined.
- Sprinkle the crumble topping evenly over the rhubarb filling in the baking dish.
- Bake for 40 to 45 minutes, or until the rhubarb is bubbling and the topping is golden brown.
- Remove from the oven and let cool for 10-15 minutes before serving to allow the juices to set.