Classic Strawberry Rhubarb Crisp with Golden Oat Topping
A quintessential spring dessert that marries sweet strawberries with tart rhubarb under a buttery, cinnamon-spiced oat crumble. The fruit filling bubbles into jammy perfection while the topping turns golden and crispy. Perfect for potlucks, family dinners, or showcasing seasonal produce. The cornstarch ensures a thick, cohesive filling that won't make the topping soggy, while vanilla adds warmth to balance the rhubarb's tartness. Serve warm with vanilla ice cream or whipped cream for the ultimate comfort dessert.
Ingredients
- 2 cups strawberries, sliced
- 1 ½ cups rhubarb, sliced (stems only, discard leaves)
- 1 ¼ cup granulated sugar
- 3 tablespoons cornstarch
- juice of 1 lemon
- 1 teaspoon vanilla extract
- 1 cup old fashioned rolled oats
- ½ cup flour
- ¼ cup granulated sugar
- 1 teaspoon ground cinnamon
- ½ teaspoon kosher salt
- 5 tablespoons unsalted butter, chilled and cut into cubescoconut oil1:1vegandairy-freedairy-free
use solid coconut oil, creates slightly different texture
Full guide →
Instructions
- 1
Preheat oven to 375 degrees
- 2
Toss strawberries, rhubarb, sugar, cornstarch, lemon juice and vanilla in large bowl until fruit is evenly coated
- 3
Pour fruit mixture into 8 inch cast iron skillet or 8x8 inch baking dish coated with cooking spray
- 4
Whisk together oats, flour, sugar, cinnamon and salt in medium bowl
- 5
Work chilled butter cubes into oat mixture using fingers or pastry cutter until coarse crumbs form
- 6
Sprinkle oat mixture evenly over fruit
- 7
Bake for 30 minutes
- 8
Reduce heat to 325 and bake additional 15-20 minutes until fruit bubbles and top is golden brown
- 9
Cool for 10-20 minutes before serving
Tips
Use rhubarb stems only as leaves are toxic. Choose bright red stalks for best color and flavor.
Cut butter into small cubes and keep chilled until use for the crispiest topping texture.
Test doneness by checking that fruit juices bubble actively around edges and topping sounds hollow when tapped.
Good to Know
Cover and refrigerate up to 3 days. Reheat in 350F oven for 10-15 minutes to recrisp topping.
Prepare fruit filling and topping separately up to 1 day ahead. Assemble and bake when ready to serve.
Serve warm with vanilla ice cream, whipped cream, or custard. Best within 2 hours of baking.
Common Mistakes
Use only rhubarb stems to avoid toxicity from leaves
Keep butter cold to prevent greasy topping that won't crisp properly
Don't skip cooling time or filling will be too liquidy to serve neatly
Substitutions
Dairy-Free Swaps
use solid coconut oil, creates slightly different texture
Full guide →Vegan Options
Gluten-Free Swaps
FAQ
Can I use frozen strawberries and rhubarb?
Yes, but thaw and drain excess liquid first, then add 1-2 extra tablespoons cornstarch to prevent watery filling.
What if my rhubarb is very tart?
Increase sugar by 2-4 tablespoons in the fruit mixture, or add extra strawberries to balance the tartness naturally.
How long does leftover crisp keep?
Covered in refrigerator for up to 3 days. Reheat in 350F oven for 10-15 minutes to restore crispy topping.