When strawberry season hits, I can't resist baking something bright and fruit-forward-and this gluten-free strawberry rhubarb crisp might just be my favorite way to celebrate the season. Juicy strawberries meet tart rhubarb under a golden oat topping that bakes up bubbly, crisp, and full of summer flavor. It's that perfect not-too-sweet dessert that feels right after any summer meal, especially with a scoop of vanilla ice cream melting on top.

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Skill Level: Beginner-friendly
Flavor Remix: Swap the ginger for cardamom or orange zest for a different kind of zing.
Allergy Watch: Dairy-Free, No Eggs, Oat Alert (use certified GF oats), Nut-Free option
Unlike some crisps that get soggy or overly sweet, this version keeps a lively balance between the sharp tang of rhubarb and the natural sweetness of ripe strawberries.
This crisp hits the perfect balance between juicy fruit and a crunchy oat topping that actually stays crisp. The trick? I add olive oil in the topping to bring out a subtle fruitiness that butter just can't match.
The fruit bubbles up just enough to thicken without turning syrupy. I skip pre-cooking the filling so the rhubarb holds its shape, and a spoonful of cornstarch gives it body without weighing it down. A splash of lemon zest and a touch of ground ginger for a bright, zesty contrast.
Finally, I season with ginger. Light and zippy. Hot take, cinnamon and strawberries are not friends, so we don't use it.
It's the kind of naturally gluten-free dessert that's rustic enough for a weeknight yet special enough for a spring brunch or backyard cookout.
Ingredient Notes
- Rhubarb: Looks for crisp stalks, they can be red or green.
- Strawberries: Use fresh strawberries when in season and frozen strawberries during winter.
- Sugar: I don't recommend using brown sugar. It has a flavor that is too rich for light strawberries and sharp rhubarb. Instead, use honey, granulated sugar, or coconut sugar.
- Lemon Zest: Adds a bright and citrusy flavor, but skip the juice as you don't need the extra liquid.
- Cornstarch: Thickens the fruit filling. Substitute it with tapioca or arrowroot starch.
- Oats: Use old-fashioned oats that are certified gluten-free.
- Almond Flour: You can also use gluten-free one-to-one flour to keep things nut-free.
- Oil: You can use olive oil, butter, or coconut oil in the crisp. But I prefer the flavor that the olive oil adds to the berries


Same Flavor, But Make it Fancy
Flex your culinary skills with another rhubarb dessert that is next level.
How to Make Gluten Free Strawberry Rhubarb Crisp
A step-by-step visual guide for making gluten-free fruit crisp. You can skip to the recipe for the full written instructions.

Mix the Filling
Toss sliced rhubarb, strawberries, sugar, cornstarch, lemon zest, and a pinch of salt directly in your greased baking dish. No pre-cooking required.

Make the Topping
In a separate bowl, add all the oat topping ingredients. Use a fork to combine until all parts are moist. You can add extra oil if needed.

Assemble
Spread the crumble topping over the fruit filling, making a flat, even layer. It is okay if some of the filling is peaking through.

Bake
Bake the crisp covered for 20 minutes to cook the filling. Then, uncover the dish and bake for another 20 minutes. You can add 5 more minutes if the rhubarb isn't soft yet or if the top isn't golden brown.
Recipe Tips
- If you want your strawberries and rhubarb to remain whole and become slightly more tart, you can remove the aluminum foil earlier during baking.
- Let it cool for 15-20 minutes for the filling to set and thicken a bit. This prevents the crisp from becoming runny when serving.
- Serve warm or room temp. Vanilla ice cream or honey whipped cream takes it from weekday treat to dinner party showstopper.
More Strawberry Desserts
Make Ahead and Storing
Make Ahead: Prepare the filling up to 3 days in advance and refrigerate. Mix the topping the day before baking for best results.
Storing: Keep leftovers covered in the fridge for up to 4 days.
Freezing: Do not freeze.
📖 Recipe

Gluten-Free Strawberry Rhubarb Crisp
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Ingredients
Strawberry Rhubarb Filling
- 3 cups diced rhubarb cut into ½ inch slices
- 3 cups strawberries hulled and cut into slices
- ½ cup granulated sugar
- 1 lemon zested
- ¼ teaspoon kosher salt
- 1 Tablespoon cornstarch substitute tapioca or arrowroot starch
Gluten-Free Crisp Topping
- 1 cup old fashioned oats certified gluten-free
- ½ cup almond flour or sub 1:1 gluten-free flour
- ⅓ cup olive oil or melted butter plus additional for pan
- ¼ cup granulated sugar
- ½ teaspoon ground ginger
- ¼ teaspoon kosher salt
Instructions
- Preheat the oven to 375°F. Brush an 8x8-inch baking dish with oil to prevent sticking. Place the baking dish on a rimmed baking sheet to catch drips.
- Add all the filling ingredients to the pan and toss thoroughly to combine. You can also do this in a bowl and then transfer the filling to the greased baking dish.3 cups diced rhubarb, 3 cups strawberries, ½ cup granulated sugar, 1 lemon, ¼ teaspoon kosher salt, 1 Tablespoon cornstarch
- For the crumble, combine all the ingredients in a small bowl. Stir until well combined. Evenly spread the topping over the fruit filling and cover with aluminum foil.1 cup old fashioned oats, ½ cup almond flour, ⅓ cup olive oil, ¼ cup granulated sugar, ½ teaspoon ground ginger, ¼ teaspoon kosher salt
- Bake the crisp, covered, for 20 minutes. Uncover and bake for another 20 minutes, or until the top is golden brown, the rhubarb is soft, and the filling is bubbling.
- Let rest for 15 minutes. Serve warm or at room temperature with freshly whipped cream or vanilla ice cream.
Equipment
- 8x8-inch baking dish
Notes
- Be sure to use certified gluten-free oats.
- Test with a fork; if the rhubarb isn't yet soft or the topping is not golden brown and add 5 more minutes.
- To reheat, warm in a 250-degree oven for 10 to 15 minutes or reheat in the microwave.
- You can use fresh or frozen strawberries and rhubarb. If you use frozen, increase the cornstarch by 1 teaspoon.
















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