Strawberry Rhubarb Bars – delcious homemade recipe

Author: Mila Stevens Published: 04/16/2026

Let’s dive into the cozy, fresh flavors of the season with these scrumptious Strawberry Rhubarb Bars. The rolled oat crust gives a lovely nutty crunch that pairs beautifully with the sweet strawberries and tangy rhubarb filling. Trust me, you’re about to enjoy a little slice of heaven!

One of my grocery runs in February led me to an unexpected rhubarb find—it felt early for the season, but I just couldn’t resist! I grabbed a bunch of stalks and raced home, excited to bake. This recipe for Strawberry Rhubarb Bars was the delicious result of that lucky discovery.

It’s no secret: I’m head over heels for rhubarb! Last year I rounded up all my favorite rhubarb recipes in one spot for anyone else who loves this tart treasure. If you’re a rhubarb fan, you’ll want to add these Strawberry Rhubarb Bars to your baking list—they’re just that good.

Here’s why I adore these bars:

They’re straightforward and easy—no fancy kitchen gadgets or mixer needed.
That pinkish red filling? Absolutely stunning and perfect for any season.
Delicious. Need I say more?
The recipe makes about eight hearty bars—perfect for sharing (or enjoying all to yourself!).

Feeling tempted yet? Let me walk you through exactly how to make these bars so you can join in on the fun!

Savor the season’s best with these mouthwatering Strawberry Rhubarb Bars. A tender rolled oat crust complements the lively strawberry and tart rhubarb filling perfectly. You’re in for something special!

Bright, tart, and just sweet enough, these Strawberry Rhubarb Bars are a simple and shareable way to enjoy fresh fruit from the season. The combination of a buttery rolled-oat crust and a sweet-tart strawberry rhubarb filling creates bars that turn a gorgeous pink as they bake. Best of all, you won’t need a mixer to get great results—a few straightforward steps and you’ll have tender, slightly chewy bars that look as lovely as they taste.

What you’ll find here: an easy recipe that comes together in about an hour, including prep and bake time (about 20 minutes to prep and 30–35 minutes to bake). It’s made in an 8×8-inch pan and yields roughly a dozen bars—plenty for sharing or keeping all to yourself. Plus, you’ll get a printable recipe card, step-by-step photos, handy tips for perfect texture, flavor swap ideas, and all the storage advice so you can confidently bake these treats anytime.

Why You’ll Love Them

These bars stand out because they deliver seasonal flavor with no fuss. The tender, slightly chewy rolled-oat crust pairs beautifully with a filling that balances sweetness and tartness just right. If you crave that bright sweet-tart bite, you’ll also love our Best Ever Lemon Bars with Buttery Shortbread Crust. The strawberry rhubarb mix turns a gorgeous shade of pink that adds a cheerful pop to any plate. They come together easily in one pan with ingredients you probably already have on hand. Whether you’re making a quick weeknight dessert, bringing a dish to brunch, or packing snacks for a potluck, these bars fit the bill—and for another ultra-portable option, try Strawberry Filled Cupcakes.

Ingredients and Measurements

1 cup rolled oats (make sure to use the regular kind, not quick-cooking)
1 cup all-purpose flour
1/2 cup brown sugar
1/2 teaspoon salt
1/2 cup (1 stick) unsalted butter, melted
1 cup diced rhubarb (about 2 to 3 stalks)
1 cup diced fresh strawberries
2 tablespoons granulated sugar
1 tablespoon lemon juice
2 teaspoons cornstarch

Assembling and Baking the Bars

Preheat oven to 375°F (190°C).
Line the bottom of an 8×8-inch square baking pan with parchment paper and lightly spray with baking spray; secure parchment with binder clips if desired.
In a mixing bowl, combine rolled oats, all-purpose flour, brown sugar, and salt.
Pour melted unsalted butter into the oat mixture and stir until clumps form.
Scoop out and set aside about 1/2 cup of the oat mixture for the crumb topping.
Press the remaining oat mixture firmly and evenly into the bottom of the prepared pan to form the crust.
In a separate bowl, toss diced rhubarb and diced strawberries with granulated sugar, lemon juice, and cornstarch.
Spread the fruit mixture evenly over the crust.
Sprinkle the reserved oat mixture over the fruit to create a crumb topping.
Bake for 30–35 minutes, or until the fruit filling is bubbling and the crumb topping is golden brown.
Let the bars cool completely before slicing.

Tips for Perfect Bars

Always use the regular rolled oats—not the quick-cooking kind—to get that perfect chew in the crust.
Reserve 1/2 cup of the crust mixture for the topping, and press the remaining dough evenly and firmly into the pan so your bars hold together well when sliced—similar to how you pack the base for Lemon Bars with Shortbread Crust.
Make sure to coat the fruit well with the sugar and cornstarch to thicken the filling nicely as it bakes (the same technique used in this Hazelnut and Strawberry Galette). If your fruit is extra juicy, feel free to add another 1/2 teaspoon cornstarch.
Line your pan with parchment and secure it with binder clips to keep it in place—it makes assembly a breeze, and you can leave the clips on during baking.
Bake until the filling bubbles around the edges and the crumb topping is golden brown. Watch carefully and avoid overbaking so the filling stays just right—not dry.
Let your bars cool completely (or pop them in the fridge for a bit) before cutting for nice, clean slices.

Flavor Swaps and Add-Ins

Berries mix-up: Swap out strawberries for raspberries, blueberries, or even a mixed berry combination with rhubarb for a fun twist.
All rhubarb: If you love that tart punch, use all rhubarb and bump up the sugar a little to balance the tartness.
Nuts and spice: Stir 1/3 cup chopped almonds or walnuts into the crust, or add 1/2 teaspoon cinnamon to the oat mixture for a warm, cozy flavor. Prefer a cookie-crumb base? Try our Easy Graham Cracker Crust Recipe.
Extract options: For extra flavor depth, add 1/2 teaspoon of vanilla or almond extract into the fruit filling.
Frozen fruit: Frozen berries work great here. Just thaw and drain any extra liquid before mixing with sugar and cornstarch (check the FAQ below for more on this).

Storage and Make-Ahead Tips

Once your bars are fully cooled, store them in an airtight container in the fridge for up to 3 to 4 days. Want to keep them longer? Wrap individual bars or the entire pan tightly in plastic wrap and foil, then freeze for up to 2 months. When you’re ready to enjoy, thaw in the fridge overnight. For a quick warm-up, heat individual bars in the microwave for 15 to 30 seconds or warm the whole pan in a 300°F oven for 8 to 12 minutes until nice and heated through. Planning a fully make-ahead dessert? Consider a no-bake option that sets in the fridge, like our No-Bake Strawberry Cheesecake.

Common Questions

Can I use frozen fruit? Absolutely. Just thaw it first, then drain any extra liquid to avoid soggy bars. Toss the fruit with sugar and cornstarch before spreading it on the crust. If it seems watery, add an extra 1/2 teaspoon cornstarch to help the filling set.
Do I have to use an 8×8 pan? While an 8×8-inch pan works best for these bars’ thickness and bake time, you can use a 9×9-inch pan too—it will yield thinner bars and bake a few minutes faster. For a 9×13-inch pan, double the recipe and expect a longer baking time.
How will I know the bars are done? Watch for bubbling fruit filling near the edges and a golden-brown crumb topping. If the center looks too runny, give it a few more minutes in the oven.
Can I make this gluten-free? Yes! Use certified gluten-free rolled oats and swap the flour for a 1:1 gluten-free all-purpose flour blend.
Can I reduce the sugar? You can cut back slightly on the granulated sugar, but because rhubarb is quite tart, reducing too much might make the bars taste too sharp. Taste the fruit mixture first and adjust as you like before adding it to the crust.