If you’ve been searching for a delightful dessert that perfectly balances sweet and tart flavors, look no further than this Strawberry Rhubarb Bars Recipe. These bars bring together the juicy brightness of fresh strawberries with the tangy punch of rhubarb, all nestled under a buttery, crumbly oat crust. Every bite bursts with vibrant colors and irresistible textures, making them a standout treat that’s just as wonderful for a casual snack as they are for impressing guests. Trust me, once you try this recipe, it’ll quickly become one of your go-to desserts.

Ingredients You’ll Need
The magic of this Strawberry Rhubarb Bars Recipe lies in its simplicity – just a handful of pantry staples and fresh produce create a symphony of flavors and textures. Each ingredient plays a key role, from the rolled oats adding chewy goodness to the lemon juice brightening the fruity filling.
- All-purpose flour: Forms the sturdy base and topping that holds everything together with just the right texture.
- Rolled oats: Adds a hearty chewiness and rustic flavor that makes these bars truly special.
- Brown sugar: Infuses a subtle caramel note that complements both crust and filling.
- Baking powder: Helps the oat crust rise slightly, keeping it light and tender.
- Salt: Enhances all the flavors, balancing sweetness and tang.
- Unsalted butter: Melted to create a rich, crumbly texture for crust and topping.
- Fresh strawberries: The star of the filling, bringing juicy sweetness and vibrant color.
- Rhubarb: Offers a tart contrast that’s essential for that classic flavor profile.
- Granulated sugar: Sweetens the filling while allowing fruit flavors to shine.
- Cornstarch: Thickens the fruity filling so it sets perfectly without being runny.
- Lemon juice: Adds bright acidity to amplify the strawberry and rhubarb’s natural flavors.
- Vanilla extract: Provides a warm, aromatic depth that rounds out the filling.
How to Make Strawberry Rhubarb Bars Recipe
Step 1: Preheat Your Oven
Start by warming your oven to 350°F (175°C). While it heats, line a 9×13-inch baking dish with parchment paper. This simple prep ensures your bars come out clean and easy to slice, which is key for keeping that gorgeous shape.
Step 2: Prepare the Crust and Topping
In a large bowl, combine the all-purpose flour, oats, brown sugar, baking powder, and salt. Pour in the melted butter and stir until you get a crumbly mixture that holds together when pressed. Press about two-thirds of this mixture firmly into the bottom of your baking dish to create an even crust, then set the remaining crumbs aside for topping later. This balance between crust and crumb topping gives each bite wonderful contrast.
Step 3: Prepare the Filling
In another bowl, gently toss together diced strawberries, rhubarb, granulated sugar, cornstarch, lemon juice, and vanilla extract. Mixing these ingredients just until combined keeps the fruit fresh and juicy without breaking down too much during baking.
Step 4: Assemble the Bars
Spread the vibrant strawberry and rhubarb filling evenly over the pressed crust. Then sprinkle the reserved oat mixture over the top to form a crumbly blanket that will turn golden and crisp in the oven.
Step 5: Bake to Perfection
Pop your assembled bars into the oven and bake for 40 to 45 minutes. You’ll know it’s ready when the topping is golden and the filling bubbles gently at the edges. Let them cool completely in the pan so the filling sets nicely, making clean slices easier and more satisfying.
How to Serve Strawberry Rhubarb Bars Recipe

Garnishes
These bars are delicious on their own, but a dusting of powdered sugar or a dollop of whipped cream elevates their charm. For an extra pop of freshness, add a few sliced strawberries or a sprinkle of finely chopped mint. These simple touches make your dessert look as fabulous as it tastes.
Side Dishes
Pair these bars with a scoop of vanilla ice cream or a drizzle of rich custard for an indulgent finish. They also go surprisingly well with a cup of hot tea or coffee, making them a cozy treat for any time of day.
Creative Ways to Present
Serve Strawberry Rhubarb Bars Recipe on a rustic wooden board alongside fresh berries for a charming presentation. You can also cut them into bite-sized squares and serve on pretty toothpicks at parties; their colorful layers will be a guaranteed crowd-pleaser.
Make Ahead and Storage
Storing Leftovers
Simply cover the bars tightly with plastic wrap or store in an airtight container at room temperature for up to two days. For longer storage, keep them refrigerated where they’ll stay fresh for about a week without losing moisture or flavor.
Freezing
If you want to enjoy these bars later, they freeze beautifully. Wrap individual slices in plastic wrap and tuck them into a freezer-safe bag or container. When frozen, they can last up to three months and still taste just as wonderful after thawing.
Reheating
To bring your frozen or refrigerated bars back to life, warm them in a low oven at 300°F (150°C) for 10 to 15 minutes. This helps re-crisp the topping and warms the filling to a delightful gooeyness that feels freshly baked.
FAQs
Can I use frozen strawberries and rhubarb?
Absolutely! Just make sure to thaw and drain the fruit well to avoid excess moisture that can make the bars soggy. Adjust baking time slightly if needed to accommodate the extra moisture.
What if I don’t have rolled oats?
You can substitute quick oats in a pinch, though the texture will be a bit softer. Avoid instant oats as they can become mushy when baked.
Can I make these bars gluten-free?
Yes, by swapping all-purpose flour with a gluten-free all-purpose blend and ensuring your oats are certified gluten-free, you can enjoy these bars without worry.
How do I know when the bars are fully baked?
Look for a golden brown topping and bubbling fruit filling around the edges. The bars should be firm to the touch but still have a bit of juiciness inside.
Can I add nuts or other toppings?
Definitely! Chopped almonds, pecans, or even a sprinkle of shredded coconut can add texture and flavor. Just mix them into the oat topping before baking for the best results.
Final Thoughts
This Strawberry Rhubarb Bars Recipe is a gem that’s worth adding to your baking repertoire. Its beautiful blend of tart and sweet flavors, paired with the comforting oat crust, makes it a crowd-pleaser for any occasion. I’m genuinely excited for you to try it and see how these bars quickly become a favorite in your kitchen too.
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Strawberry Rhubarb Bars Recipe
- Total Time: 1 hour
- Yield: 16 servings 1x
- Diet: Vegetarian
Description
These Strawberry Rhubarb Bars offer a delightful balance of sweet strawberries and tart rhubarb nestled in a crumbly oat and flour crust. Perfect as a homemade dessert or a sweet snack, these bars combine a buttery base with a fresh fruit filling baked to golden perfection.
Ingredients
Crust and Topping
- 1 1/2 cups all-purpose flour
- 1 1/2 cups rolled oats
- 1 cup brown sugar, packed
- 1 teaspoon baking powder
- 1/2 teaspoon salt
- 1 cup unsalted butter, melted
Filling
- 2 cups fresh strawberries, diced
- 2 cups rhubarb, diced
- 1/2 cup granulated sugar
- 1 tablespoon cornstarch
- 1 tablespoon lemon juice
- 1 teaspoon vanilla extract
Instructions
- Preheat Oven: Preheat your oven to 350°F (175°C). Line a 9×13-inch baking dish with parchment paper to prevent sticking and make removal easier.
- Prepare the Crust and Topping: In a large mixing bowl, combine the all-purpose flour, rolled oats, brown sugar, baking powder, and salt. Stir in the melted butter until the mixture becomes crumbly. Press about two-thirds of this crumbly mixture firmly and evenly into the bottom of the prepared baking dish to form the crust. Reserve the remaining mixture for the topping.
- Prepare the Filling: In another bowl, mix together the diced strawberries, diced rhubarb, granulated sugar, cornstarch, lemon juice, and vanilla extract until well combined. This will ensure the filling thickens properly and balances sweetness with tartness.
- Assemble the Bars: Spread the fruit filling evenly over the pressed crust in the baking dish. Then, sprinkle the reserved oat and flour mixture evenly over the top to form the crumbly topping layer.
- Bake: Place the baking dish into the preheated oven and bake for 40-45 minutes, until the topping is golden brown and the filling is bubbly. This baking time allows the filling to cook through and the crust and topping to develop a crispy texture.
- Cool and Serve: Remove from oven and allow the bars to cool completely in the baking dish before cutting them into squares. Cooling helps the filling to set properly, making the bars easier to cut and serve.
Notes
- For best results, use fresh ripe strawberries and fresh rhubarb.
- If rhubarb is tart, you can increase granulated sugar slightly to balance flavors.
- Line the baking dish with parchment paper so bars can be lifted out easily for serving.
- Store leftovers in an airtight container in the refrigerator for up to 5 days.
- These bars can also be frozen for up to 3 months. Thaw overnight in the fridge before serving.
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American