Strawberry Rhubarb Crumb Bars
Strawberry Rhubarb Crumb Bars are the perfect treat to capture the essence of spring in every bite. You’ll love the crisp topping that crumbles just right, paired with a sweet and tangy filling that sings with juicy strawberries and tart rhubarb. This dessert combines delightful textures and flavors, making it an irresistible option for gatherings or a cozy night in. Whether you’re preparing a picnic or just indulging in a snack at home, these bars are sure to impress.
Table of Contents

I still remember the first time I had strawberry rhubarb something—my aunt’s delicious pie. There’s just something about that perfect balance of sweetness and tartness that gets me every time. Since then, I’ve loved experimenting with this classic combination, and I’m excited to share my version of Strawberry Rhubarb Crumb Bars with you. You’ll find that these bars are not only easy to whip up, but they also make for a stunning dessert that’s sure to be a crowd-pleaser. So, let’s get started on making these delightful bars that are bursting with flavor!
Why You’ll Love This Recipe
- Simple & Quick: With just 20 minutes of prep time, you can have these delicious bars in the oven in no time.
- Irresistible Flavor: The combination of sweet strawberries and tart rhubarb creates a fresh and balanced taste.
- Eye-Catching Appeal: The warm golden crumb topping beautifully contrasts with the vibrant fruit filling.
- Flexible Serving: Perfect to enjoy as a dessert, snack, or even breakfast treat.
- Diet-Friendly Options: Easily adaptable for gluten-free baking by substituting with gluten-free flour.
Ingredients You’ll Need
- 3 cups all-purpose flour: This is the base for the crumb crust and topping. For a gluten-free version, you can use a 1-to-1 gluten-free flour blend.
- ¼ cup granulated sugar: This adds sweetness to the crumb mixture. You can substitute with coconut sugar for a hint of caramel flavor.
- ½ cup packed light or dark brown sugar: The moisture from brown sugar gives a rich flavor and chewiness to the crust.
- 1 teaspoon baking powder: Helps the crust to rise slightly, resulting in a lovely texture.
- ¼ teaspoon salt: Balances sweetness and enhances flavors.
- 1 tablespoon orange or lemon zest: Adds a refreshing citrus aroma. Use organic fruits, and it’s easy to substitute the citrus based on your taste.
- 1 cup salted butter (cold and cubed): Cold butter ensures a flaky texture. If you’re dairy-free, stick with a solid dairy-free butter alternative.
- 1 large egg (lightly beaten): This binds the crumb mixture together. You can use a flax egg for a vegan alternative.
- 3 cups sliced strawberries (chopped in ½-inch pieces): Sweet strawberries add a beautiful flavor and color.
- 2 cups sliced rhubarb (chopped in ½-inch pieces): Tart rhubarb is essential for that classic flavor and pairs perfectly with the strawberries.
- ½ cup granulated sugar: For sweetening the filling. Adjust to your taste—add more or less depending on the tartness of your fruit.
- 4 teaspoons cornstarch: Thickens the filling to prevent it from being runny. You may substitute with tapioca starch if preferred.
How to Make Strawberry Rhubarb Crumb Bars
- Preheat the Oven: Start by preheating your oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper, leaving some overhang for easy removal afterward.
- Make the Crumb Mixture: In a large mixing bowl, combine 3 cups all-purpose flour, ¼ cup granulated sugar, ½ cup packed light or dark brown sugar, 1 teaspoon baking powder, ¼ teaspoon salt, and the tablespoon of zest. Mix until well-combined.
- Add the Butter: Toss in the cold cubed butter and blend it with your fingers or a pastry cutter until it resembles coarse crumbs. This should take just a few minutes. Add in the lightly beaten egg and mix until everything is combined, but be careful not to overwork the dough—this keeps your crust tender.
- Divide the Mixture: Set aside about 1 ½ cups of the crumb mixture for the topping. Spread the remaining mixture evenly into the prepared baking pan, pressing it down firmly to form a solid base.
- Prepare the Filling: In a medium bowl, mix together the chopped strawberries, sliced rhubarb, ½ cup granulated sugar, and 4 teaspoons cornstarch. Toss to coat the fruit evenly. This mixture should start to look juicy and fragrant.
- Assemble the Bars: Evenly distribute the fruit filling over the crust in the baking pan, spreading it out gently. Then, sprinkle the reserved crumb mixture evenly on top of the filling.
- Bake: Place the pan in the preheated oven and bake for about 45-50 minutes, or until the top is golden brown and the filling is bubbly around the edges.
- Cool Before Serving: Once baked, allow the bars to cool in the pan for at least 30 minutes before lifting them out using the parchment paper. Let them cool completely on a wire rack for best results before cutting into squares.
Storing & Reheating
To store your Strawberry Rhubarb Crumb Bars, cover with foil or transfer to an airtight container and keep them at room temperature for up to 3 days. For longer storage, refrigerate them for up to a week. You can also freeze the bars for up to 3 months; just wrap them tightly in plastic wrap before placing them in a freezer-safe container. When ready to enjoy, let them thaw in the fridge overnight. To refresh the bars, you can reheat them in a preheated oven at 350°F (175°C) for about 10-15 minutes, which will help regain their delightful crumb texture.
Chef’s Helpful Tips
- Make sure your butter is cold and cubed for that tender and flaky crumb. If it’s too warm, the texture won’t hold together well.
- To prevent your filling from being too runny, ensure you mix the cornstarch thoroughly with the fruit and let it sit for a few minutes before filling the bars.
- If your rhubarb is particularly tart, feel free to increase the sugar in the filling for a sweeter balance.
- When cutting the bars, use a sharp knife and wipe it clean between cuts to maintain clean edges on your squares.
These Strawberry Rhubarb Crumb Bars are a delightful combination of sweetness and tartness, with a comforting crumb texture. Whether you whip them up for a casual afternoon snack or showcase them at a gathering, you’re bound to impress everyone with their flavors. Feel free to experiment with the fruits and spices to make this recipe your own. Enjoy each bite, and make sure to share them with loved ones—it’s a treat that will surely warm hearts!

Recipe FAQs
Can I use frozen fruit instead of fresh strawberries and rhubarb?
Absolutely! Frozen fruit works well in this recipe, especially if it’s out of season. Just be sure to thaw and drain excess moisture before mixing it with the sugar and cornstarch.
What other fruits could I add to the filling?
You can mix in some blueberries, raspberries, or even peaches! Just be mindful of the sweetness level and adjust the sugar accordingly, especially if using sweeter fruits.
Can I make these bars ahead of time?
Absolutely! You can prepare the bars and store them in the refrigerator or freeze them, as mentioned. They’re perfect for making in advance and saving for later enjoyment.
How can I make these bars vegan?
To make a vegan version, replace the egg with a flax egg (1 tablespoon ground flaxseed mixed with 2.5 tablespoons water), and use a dairy-free butter substitute. The bars will still turn out deliciously!
PrintMore BROWNIES & BARS Recipes
- Blueberry Crumb Bars
- Brown Butter Brownies
- Valentine Sugar Cookie Bar
- Cottage Cheese Brownies Delicious High Protein
- Easy Coconut Cream Cheesecake Bars for Tropical Dessert Lovers
Did You Enjoy Making This Recipe? Please rate this recipe with ⭐⭐⭐⭐⭐ or leave a comment.
📖 Recipe Card

Strawberry Rhubarb Crumb Bars
- Prep Time: 20 minutes
- Cook Time: 60 minutes
- Total Time: 1 hour 20 minutes
- Yield: 12 servings 1x
- Category: BROWNIES & BARS
- Method: Baking
- Cuisine: American
Description
These Strawberry Rhubarb Crumb Bars offer a delightful combination of ripe strawberries and tangy rhubarb with a buttery crumb topping. Perfect for a sweet treat at home, these bars are simple to prepare and sure to impress anyone looking for an easy homemade dessert.
Ingredients
- 3 cups all-purpose flour
- ¼ cup granulated sugar
- ½ cup packed light or dark brown sugar
- 1 teaspoon baking powder
- ¼ teaspoon salt
- 1 tablespoon orange or lemon zest
- 1 cup salted butter, cold and cubed
- 1 large egg, lightly beaten
- 3 cups sliced strawberries, chopped in ½-in pieces
- 2 cups sliced rhubarb, chopped in ½-in pieces
- ½ cup granulated sugar
- 4 teaspoons cornstarch
Instructions
- Preheat the oven to 375°F. Grease a 9×13 inch baking dish and line it with parchment paper.
- In a large bowl, mix flour, granulated sugar, brown sugar, baking powder, salt, and orange/lemon zest.
- Add butter and cut into dry ingredients using a fork or pastry blender until the pieces resemble peas.
- Stir in the beaten egg, blending until clumps form. Press half of this mixture into the bottom of the prepared pan.
- In another bowl, combine strawberries, rhubarb, cornstarch, and sugar. Spread this fruit mixture over the crumb base.
- Clump the remaining crumb mixture together and sprinkle it evenly over the fruit.
- Bake for about 50-60 minutes until the topping is golden and the fruit bubbles. Allow to cool for 2-3 hours at room temperature or 1 hour in the fridge before slicing.
Notes
For the best flavor, serve warm with vanilla ice cream or whipped cream.
Store leftovers in the fridge for up to 5 days for optimal freshness.
Use a mixture of strawberries and rhubarb for the best taste balance.
Nutrition
- Serving Size: 1 bar
- Calories: 250
- Sugar: 10g
- Sodium: 120mg
- Fat: 12g
- Saturated Fat: 7g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 36g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 30mg
