Name: Strawberry Rhubarb Pie Bars Recipe
Prep time: 15 min
Cook time: 35 min
Total time: 50 min
Cuisine: American
Ingredients: 1¼ cups rhubarb, diced small; 1¼ cups strawberries, stems removed and diced small; 1 tablespoon lemon juice; 1 teaspoon vanilla extract; 2 tablespoons brown sugar; 2 teaspoons corn starch; ½ teaspoon cinnamon; Pinch of salt; 12 tablespoons unsalted butter, softened (1½ sticks or ¾ cup); ⅓ cup packed brown sugar; ¼ cup white sugar; 1⅔ cups all purpose flour; ¼ cup Old Fashioned Rolled Oats; ½ teaspoon salt; ¼ cup chopped nuts (pecans, optional)

Jump to Recipe· 4.3 from 76 reviews

There’s nothing quite like a warm, comforting treat that brings a burst of fresh, fruity flavor in every bite. This Strawberry Rhubarb Pie Bars Recipe perfectly captures that magic with its tender oat crust, luscious tangy-sweet filling, and crumbly nutty topping. If you love the classic strawberry rhubarb pie, these bars offer the same delightful taste in a convenient, handheld form that’s perfect for everything from casual snack times to special celebrations. Once you try this recipe, you’ll find yourself reaching for these bars again and again!

Ingredients You’ll Need

The image shows various white bowls and small dishes arranged on a white marbled surface, each holding different baking ingredients. Starting from the top left, there is a small white bowl with rolled oats, a large white bowl filled with flour on the top right, and a small dark grey bowl with salt. Below, a white bowl with sugar is followed by a speckled white bowl containing light brown sugar in a round shape. To the far right, a small white bowl holds a clear liquid, while below it a white bowl contains cut red strawberries with a shiny texture. Another white bowl in the bottom center holds chopped rhubarb with a mix of red and green colors. Small white dishes scattered around have brown sugar, cinnamon powder, vanilla extract, cornstarch, and two sticks of butter with measurement markings on the paper wrappers. The ingredients are neatly organized and clearly visible. Photo taken with an iphone --ar 4:5 --v 7

This recipe calls for straightforward, wholesome ingredients that come together to create layers of flavor and texture. Each item plays an important role, from the bright fruit filling to the buttery crumbly crust that holds it all together.

Rhubarb (1¼-½ cup, diced): Adds that signature tartness that perfectly balances the sweetness of the strawberries.

Strawberries (1¼-½ cup, diced): Brings juicy, natural sweetness and vibrant color to the filling.
Lemon juice (1 tablespoon): Enhances the fruit’s brightness and keeps flavors fresh.
Vanilla extract (1 teaspoon): Adds warm, aromatic depth to the filling.

Brown sugar (2 tablespoons for filling + ⅓ cup for dough): Imparts caramel notes and a lovely moisture to both filling and crust.
Corn starch (2 teaspoons): Thickens the fruit filling so it sets perfectly without being runny.
Cinnamon (½ teaspoon): Offers a subtle warm spice that compliments the fruit beautifully.

Salt (½ teaspoon for dough + pinch for filling): Essential for balancing flavors and enhancing sweetness.
Unsalted butter (12 tablespoons, softened): Creates a rich, tender crust with a melt-in-your-mouth texture.
White sugar (¼ cup): Sweetens the dough and balances the brown sugar’s deeper tones.

All-purpose flour (1⅔ cups): The base for the crust, providing structure and crumb.
Old Fashioned Rolled Oats (¼ cup): Gives a hearty, rustic chewiness to the crust’s texture.
Chopped nuts (¼ cup, optional): Adds crunch and a toasty flavor when sprinkled on top.

How to Make Strawberry Rhubarb Pie Bars Recipe

The image is divided into four parts, each showing different stages of making a dessert. In the top left, a white bowl holds sliced red strawberries with light and dark brown powders and white powder on top, creating layers of red, light brown, and white. The top right shows a white bowl with two light yellow sticks of butter, brown sugar, and white sugar placed side by side, showing layers of pale yellow, light brown, and white. The bottom left displays the same white bowl with a thick pale brown dough mixed with white flour and raw oats, creating a layered texture of smooth dough and rough oats. The bottom right shows a square baking pan lined with white paper filled with crumbly pale golden oat dough, where a woman's hand presses the dough down, leaving visible hand marks. The surface throughout the images is a white marbled texture. photo taken with an iphone --ar 4:5 --v 7

Step 1: Prepare Your Pan and Oven

Start by preheating your oven to 375°F to get it nice and warm. Line an 8×8-inch square pan with parchment paper—this makes for easy removal and clean cutting later. Having this ready upfront keeps the process smooth and stress-free.

Step 2: Mix the Filling

In a bowl, combine diced rhubarb, strawberries, lemon juice, vanilla extract, brown sugar, corn starch, cinnamon, and a pinch of salt. Toss everything together so the fruit is evenly coated with the spices and thickening agent. This blend of tart, sweet, and fragrant ingredients forms that signature filling you’ll love.

Step 3: Make the Dough

Using an electric mixer, cream the softened butter with brown and white sugars until fluffy and pale—that’s the secret to a tender crust. On low speed, add the flour, oats, and salt until just combined. Avoid overmixing to keep the crumbly texture perfect. Reserve some dough mixed with chopped nuts (if using) for the topping.

Step 4: Assemble the Bars

Press two-thirds of the dough evenly into the prepared pan, creating a firm base layer. Use your fingertips or the flat bottom of a measuring cup to press it down thoroughly. Carefully spoon the fruit mixture over this crust with a slotted spoon, letting excess liquid drain so the bars don’t get soggy.

Step 5: Add the Crumb Topping and Bake

Sprinkle the reserved dough mixed with nuts over the fruit layer, pressing it gently to ensure it sticks but still stays crumbly. Slide the pan into the oven and bake for 30 to 35 minutes or until the topping turns golden brown and you see the fruit juices bubbling at the edges. This signals that everything is cooked just right!

Step 6: Cool and Slice

Allow the bars to cool completely in the pan before slicing into squares. This step helps the filling to set so your bars hold together beautifully when served.

How to Serve Strawberry Rhubarb Pie Bars Recipe

Garnishes

These bars are stunning on their own, but a dollop of whipped cream or a scoop of vanilla ice cream elevates the experience even further, adding creamy richness to the fruity tang.

Side Dishes

Pair your bars with a cup of freshly brewed tea or coffee for a delightful afternoon treat. They also make a lovely finish to a picnic or weekend brunch when served alongside light salads or fresh fruit.

Creative Ways to Present

Try serving the bars on a wooden board dusted lightly with powdered sugar or drizzle with a simple lemon glaze for an extra pop of brightness. You can also cut them into bite-sized pieces for a charming dessert platter.

Make Ahead and Storage

Storing Leftovers

Once cooled, place your Strawberry Rhubarb Pie Bars Recipe in an airtight container and refrigerate. They keep wonderfully for 3 to 4 days and stay moist and delicious.

Freezing

For longer storage, the bars freeze well. Wrap them tightly in plastic wrap and aluminum foil or place them in a freezer-safe bag. They’ll keep for up to 2 months without losing flavor or texture.

Reheating

To enjoy warm bars after refrigeration or freezing, simply reheat them in the microwave for 10 to 15 seconds. The warmth revives that freshly baked feel, softening the fruit and melting the crumb topping just right.

FAQs

Can I substitute frozen fruit for fresh in this recipe?

Yes! Frozen strawberries and rhubarb will work fine, just thaw and drain excess liquid well before mixing to avoid soggy bars.

Is it possible to make this recipe gluten-free?

Absolutely. Use a gluten-free flour blend in place of all-purpose flour and ensure your oats are certified gluten-free to keep these bars safe for gluten-sensitive friends.

What type of nuts work best for the topping?

Pecans are delicious here, but walnuts or almonds are also great choices that add a nice crunch and flavor contrast.

Can I use brown sugar instead of white sugar in the crust?

Yes, swapping white sugar for brown sugar will deepen the crust’s flavor with molasses notes, making it even cozier.

How do I know when the bars are fully baked?

Look for a golden brown crumb topping and bubbling fruit juices around the edges as signs that the bars are done baking and ready to cool.

Final Thoughts

This Strawberry Rhubarb Pie Bars Recipe is truly one of those evergreen favorites that never disappoints. The balance of tangy fruit, sweet crumb, and buttery oat crust comes together in a way that feels both nostalgic and fresh. I hope you enjoy making and sharing these bars as much as I love having them in my kitchen—it’s the kind of recipe that brings smiles, guaranteed!