This sweet-tart crisp combines 3 cups hulled strawberries and 2 cups sliced rhubarb tossed with sugar, cornstarch, vanilla and lemon, baked in an 8-inch dish at 350°F for 35–40 minutes. Top is oats, flour, brown sugar, cinnamon and cold butter worked to coarse crumbs. Let cool 10–15 minutes; serve warm with ice cream. Add nuts for crunch or use thawed frozen fruit; check oats for gluten cross-contact if needed.
The window was open and a warm breeze carried the smell of overripe strawberries straight into my kitchen, and that was all the nudge I needed to make this crisp.
I brought this to a potluck once and watched a friend who swore she disliked rhubarb go back for thirds, which told me everything I needed to know.
Ingredients
- Fresh strawberries: Hulled and quartered, they break down into sweet pools that balance the rhubarbs bite.
- Fresh rhubarb: Sliced into half inch pieces, it adds a tangy edge that keeps the dessert from feeling one note.
- Granulated sugar: Draws out the juices and sweetens the filling without overpowering the fruit.
- Cornstarch: Thickens those gorgeous juices so the filling holds together instead of flooding the plate.
- Vanilla extract: Rounds out the tartness with a warm, fragrant sweetness.
- Lemon juice: Brightens every flavor and keeps the fruit tasting fresh.
- Old fashioned rolled oats: Give the topping its signature chew and rustic heartiness.
- All purpose flour: Binds the crumble together so it actually clumps instead of scattering like sand.
- Light brown sugar, packed: Adds caramel depth that white sugar alone simply cannot match.
- Ground cinnamon: A subtle warmth that makes the topping feel like a hug.
- Salt: Just enough to make every sweet note sing louder.
- Cold unsalted butter, cubed: The secret to those irresistible golden clumps, and it must be cold or the texture falls apart.
Instructions
- Heat the oven:
- Set it to 350 degrees Fahrenheit and let it fully preheat while you work, because a hot oven from the start gives you that deep golden top.
- Toss the fruit:
- Pile the strawberries and rhubarb into a large bowl with the sugar, cornstarch, vanilla, and lemon juice, then toss gently until every piece is coated and glossy.
- Fill the dish:
- Transfer the fruit mixture into a lightly greased 8 inch square baking dish, spreading it into an even layer so every serving gets the same ratio of fruit to topping.
- Build the crumble:
- In a separate bowl, stir together the oats, flour, brown sugar, cinnamon, and salt, then work in the cold butter with your fingers until the mixture looks like coarse crumbs with some pea sized bits remaining.
- Cover and bake:
- Scatter the topping evenly over the fruit and bake for 35 to 40 minutes, until the crust is deeply golden and you can see the filling bubbling up around the edges.
- Rest and serve:
- Let it sit for 10 to 15 minutes so the juices settle, then serve it warm with a generous scoop of vanilla ice cream melting over the top.
Somewhere between the second and third summer I made this, it stopped being a recipe and started being the reason people showed up early to dinner.
Adding Extra Crunch
Toss half a cup of chopped pecans or walnuts into the topping mixture for a nutty, crackly layer that takes this from great to unforgettable.
Choosing the Right Wine Pairing
A glass of late harvest Riesling or Moscato beside a warm bowl of this crisp turns a simple weeknight dessert into something that feels quietly celebratory.
Gluten and Allergen Considerations
This recipe contains wheat and dairy, and while oats are naturally gluten free, you should check labels carefully if you are serving someone with celiac disease.
- Certified gluten free oats are widely available and swap in seamlessly.
- A one to one gluten free flour blend works in the topping without noticeable changes.
- Always double check your butter and vanilla labels for hidden allergens.
Every summer deserves a dessert this easy and this good, and I hope it finds its way onto your table again and again.
Recipe Questions
- → Can I use frozen fruit instead of fresh?
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Yes. Thaw frozen strawberries and rhubarb slightly and drain excess liquid before tossing with sugar and cornstarch to prevent a watery filling. You may need a few extra minutes of baking for the filling to bubble.
- → How do I get a crunchier topping?
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Work the cold butter into the oats and flour until you have coarse crumbs, then bake until deeply golden. Stirring in 1/2 cup chopped nuts like pecans or walnuts adds extra crunch and flavor.
- → Can I reduce the sugar without losing structure?
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Reduce granulated sugar by up to a quarter if you prefer less sweetness, but keep the cornstarch amount the same to maintain a thickened filling. Adjust to taste, especially with very ripe strawberries.
- → What size dish and oven temperature should I use?
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Use an 8-inch square baking dish and bake at 350°F (175°C) for about 35–40 minutes, or until the topping is golden and the filling bubbles at the edges. Times may vary slightly by oven.
- → Are there dairy-free substitutions for the topping?
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Swap the cold butter for coconut oil solidified in the fridge or a dairy-free butter alternative in equal measure. The texture will be slightly different but still tender and flavorful.
- → How should I serve and store the crisp?
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Serve warm, optionally with vanilla ice cream or whipped cream. Cool fully before covering and refrigerating; it keeps 3–4 days refrigerated. Reheat in a low oven to restore crispness before serving.