This strawberry rhubarb crisp represents the definitive intersection of spring tartness and early summer sweetness. Throughout my career developing recipes , I have found that the difference between a mediocre fruit bake and a masterful one lies entirely in controlling the viscosity of the filling.
While rhubarb provides an essential acidic counterpoint to the strawberries, it releases significant moisture during baking, which requires a precise balance of thickener and sugar to achieve that perfect, jammy consistency without becoming soupy.
Key Culinary Highlights
- Using cornstarch is non-negotiable for managing the high water content of rhubarb and strawberries.
- Cold, cubed butter creates a crumbly, distinct topping texture, whereas melted butter often leads to a dense paste.
- Allowing the crisp to cool for at least 15 minutes creates the optimal viscosity for serving.
- The ratio of brown sugar to fruit is calibrated to balance tartness without masking natural flavors.
“In professional baking, we treat fruit crisps as a study in texture; the contrast between the hot, viscous fruit and the shattering crunch of the oat topping is paramount.”
Ingredients Required
- 2 cups rhubarb, chopped into 1/2 inch pieces
- 2 cups strawberries, hulled and quartered
- 1/3 cup granulated sugar
- 1 tablespoon cornstarch
- 1 teaspoon vanilla extract
- 1 cup all-purpose flour
- 3/4 cup old-fashioned rolled oats
- 2/3 cup light brown sugar, packed
- 1 teaspoon ground cinnamon
- 1/2 cup unsalted butter, cold and cubed

The architecture of a successful crisp relies heavily on the treatment of the butter. In my kitchen, I strictly adhere to using cold, cubed butter rather than melted butter for the topping. When cold butter hits the high heat of the oven, the water content evaporates to create steam pockets, resulting in a lighter, crispier texture that contrasts beautifully with the dense fruit filling.
Furthermore, the choice of thickener is critical. I utilized the framework from this strawberry rhubarb crisp recipe as a baseline, but emphasized the necessity of cornstarch over flour for the filling, as cornstarch provides a clearer, glossier finish that highlights the ruby tones of the fruit.
Strawberry Rhubarb Crisp
The Proven Method
- Preheat your oven to 350°F (177°C) and lightly grease an 8×8 inch baking dish or a 9-inch pie plate.
- In a large mixing bowl, combine the chopped rhubarb, quartered strawberries, granulated sugar, cornstarch, and vanilla extract. Toss gently but thoroughly to ensure the cornstarch is evenly distributed, which is crucial for thickening the juices.
- Transfer the fruit mixture into the prepared baking dish, spreading it into an even layer.
- In a separate medium bowl, whisk together the flour, rolled oats, brown sugar, and cinnamon.
- Incorporate the cold, cubed butter into the dry ingredients using a pastry cutter or your fingers. Work the mixture until it resembles coarse crumbs; avoid overworking it, as you want pea-sized distinct pieces of butter to remain for a flaky texture.
- Sprinkle the crumb topping evenly over the fruit layer.
- Bake for 35-40 minutes. You are looking for the fruit filling to be bubbling vigorously around the edges and the topping to turn a deep golden brown.
- Remove from the oven and allow the crisp to rest for at least 15-20 minutes before serving. This resting period allows the filling to set properly.
To finish, temperature contrast is key to the dining experience. I recommend serving this crisp warm, not piping hot, paired with a scoop of high-quality vanilla bean ice cream.
The melting cream integrates with the warm strawberry-rhubarb syrup to create a sauce that ties the dish together. By following these technical adjustments regarding moisture control and butter temperature, you elevate a rustic farmhouse staple into a refined dessert suitable for any table.
Strawberry Rhubarb Crisp
Strawberry Rhubarb Crisp
- Total Time: 55 minutes
- Yield: 6 servings 1x
- Diet: Vegetarian
Description
A delightful dessert combining the tartness of rhubarb with the sweetness of strawberries in a crunchy oat topping.
Ingredients
- 2 cups rhubarb, chopped into 1/2 inch pieces
- 2 cups strawberries, hulled and quartered
- 1/3 cup granulated sugar
- 1 tablespoon cornstarch
- 1 teaspoon vanilla extract
- 1 cup all-purpose flour
- 3/4 cup old-fashioned rolled oats
- 2/3 cup light brown sugar, packed
- 1 teaspoon ground cinnamon
- 1/2 cup unsalted butter, cold and cubed
Instructions
- Preheat your oven to 350°F (177°C) and lightly grease an 8×8 inch baking dish or a 9-inch pie plate.
- In a large mixing bowl, combine the chopped rhubarb, quartered strawberries, granulated sugar, cornstarch, and vanilla extract. Toss gently but thoroughly.
- Transfer the fruit mixture into the prepared baking dish, spreading it into an even layer.
- In a separate medium bowl, whisk together the flour, rolled oats, brown sugar, and cinnamon.
- Incorporate the cold, cubed butter into the dry ingredients until it resembles coarse crumbs.
- Sprinkle the crumb topping evenly over the fruit layer.
- Bake for 35-40 minutes until the fruit filling is bubbling and the topping is deep golden brown.
- Remove from the oven and allow to rest for at least 15-20 minutes before serving.
Notes
Serve warm with vanilla bean ice cream for the best experience.
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 250
- Sugar: 12g
- Sodium: 150mg
- Fat: 10g
- Saturated Fat: 6g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 36g
- Fiber: 3g
- Protein: 3g
- Cholesterol: 25mg


