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Deliciously Tangy Rhubarb Bars You’ll Crave Again!

Published: Aug 16, 2025 by Emilia malwar · This post may contain affiliate links ·

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As the sun dips low in the sky, casting a warm glow across my kitchen, I can't help but be drawn to the vibrant green and pink hues of rhubarb sitting on my counter. It's time to whip up a batch of Tangy Rhubarb Bars! This delightful recipe marries the tartness of fresh rhubarb with a buttery, crumbly base, resulting in a sweet treat that’s both satisfying and invigorating. One of the best parts? It's a quick prep dessert, allowing you to indulge in homemade goodness without spending all day in the kitchen. Perfect for impressing friends during a weekend gathering or simply savoring on a cozy afternoon, these bars are sure to become a staple in your recipe collection. Ready to dive into this delicious adventure and discover the magic of rhubarb? Let’s get started!

Why are Tangy Rhubarb Bars a Must-Try?

Incredible flavor: The perfect blend of tart rhubarb and sweet sugar creates a delicious balance that will have your taste buds dancing.

Easy to make: With just 15 minutes of prep, you can enjoy fresh, homemade bars without a hassle!

Versatile dessert: These Tangy Rhubarb Bars shine as a delightful treat for picnics or as a comforting snack with tea.

Impressive presentation: The stunning layers of crumb and rhubarb make for an eye-catching dessert that’s sure to impress guests.

Budget-friendly: Utilizing rhubarb, a seasonal gem, makes this recipe both economical and rewarding.

Crowd-pleaser: Everyone loves a sweet and tangy dessert, ensuring these bars will disappear in no time! Don’t miss out on the delightful experience of baking and sharing these scrumptious bars!

Tangy Rhubarb Bars Ingredients

• Discover the delightful components of these Tangy Rhubarb Bars!

For the Rhubarb Filling

  • Rhubarb – 2 cups, chopped; choose fresh rhubarb for the best tart flavor!
  • Granulated sugar – 1 cup; balances the tartness and enhances sweetness.
  • Cornstarch – 1 tablespoon; thickens the filling perfectly, giving it a nice texture.
  • Lemon juice – 1 tablespoon; adds a refreshing brightness to the filling.
  • Vanilla extract – ½ teaspoon; infuses a warm undertone to the tangy rhubarb.

For the Crust and Topping

  • All-purpose flour – 1 cup; forms the base for that delightful crumbly texture.
  • Unsalted butter – ½ cup, softened; brings richness and moisture to the bars.
  • Brown sugar – ¼ cup; adds a hint of caramel flavor to the crust.
  • Salt – ¼ teaspoon; enhances the overall flavor profile.
  • Baking powder – ¼ teaspoon; helps create the perfect rise in your bars.
  • Egg – 1 large; binds everything together for a cohesive texture.

Step‑by‑Step Instructions for Tangy Rhubarb Bars

Step 1: Preheat Your Oven
Begin by preheating your oven to 350°F (175°C). This step is crucial as it ensures even baking. While the oven warms up, gather your ingredients and prepare your baking pan by greasing a 9x9-inch square dish to prevent the bars from sticking after baking.

Step 2: Prepare the Rhubarb Filling
In a mixing bowl, combine 2 cups of chopped rhubarb, 1 cup of granulated sugar, 1 tablespoon of cornstarch, 1 tablespoon of lemon juice, and ½ teaspoon of vanilla extract. Stir everything together until the rhubarb is well coated. Set this tangy mixture aside to allow the flavors to meld while you work on the crust.

Step 3: Make the Crust and Topping
In another bowl, mix 1 cup of all-purpose flour, ½ cup of softened unsalted butter, ¼ cup of brown sugar, ¼ teaspoon of salt, and ¼ teaspoon of baking powder. Blend these ingredients using a fork or pastry cutter until the mixture resembles coarse crumbs. This crumbly texture will form both the base and topping of your Tangy Rhubarb Bars.

Step 4: Form the Crust Base
Take approximately two-thirds of the crumb mixture and evenly press it into the greased baking pan. It should create a solid, even layer at the bottom of the pan. Use your hands or the back of a spoon to ensure it’s nicely packed and smooth, setting the stage for the rhubarb filling.

Step 5: Add the Rhubarb Layer
Carefully pour the rhubarb filling over the pressed crust, spreading it evenly to cover the base. This mixture will bubble and caramelize while baking, creating a lovely tangy layer within your bars. Make sure it’s evenly distributed for consistent taste in each square.

Step 6: Sprinkle the Crumb Topping
Take the remaining crumb mixture and sprinkle it generously over the rhubarb layer. This will form a delicious, crunchy topping that contrasts nicely with the soft filling. Gently press it down to secure it in place, ensuring an even covering over the delightful tangy filling.

Step 7: Bake the Bars
Place the baking pan into the preheated oven and bake for 35-40 minutes. You’ll know the Tangy Rhubarb Bars are done when the top turns a golden brown and the edges begin to pull away from the pan slightly. Keep an eye on them towards the last few minutes to avoid over-baking.

Step 8: Cool and Cut
Once baked, remove the pan from the oven and allow it to cool completely on a wire rack. This cooling process will help the bars set and makes cutting easier. Once cooled, slice into squares, and your homemade Tangy Rhubarb Bars are ready to share and enjoy!

What to Serve with Tangy Rhubarb Bars

Indulging in a sweet treat infused with fresh rhubarb can lead to delightful ideas for a well-rounded meal or snack.

  • Vanilla Ice Cream: A scoop of creamy vanilla ice cream perfectly complements the tartness of the rhubarb, offering a delightful contrast of flavors.

  • Whipped Cream: Light and fluffy whipped cream adds a luscious touch, enhancing the tangy notes while providing a silky texture.

  • Fresh Berries: A side of mixed berries, like strawberries and blueberries, invigorates the plate with vibrant colors and juicy sweetness.

Every bite of Tangy Rhubarb Bars paired with these fresh fruits creates a refreshing dessert experience, balancing flavors beautifully.

  • Lemonade: A glass of freshly made lemonade brightens the palate and echoes the citrus notes from the lemon juice in the bars.

  • Tea or Coffee: Sipping on aromatic tea or rich coffee provides a warm beverage option that harmonizes wonderfully with the dessert’s crumbly crust.

Remember, the love you put into creating this treat will resonate with each pairing, turning your gathering into a special occasion.

Make Ahead Options

These Tangy Rhubarb Bars are perfect for meal prep enthusiasts! You can prepare the rhubarb filling up to 24 hours in advance; simply combine the chopped rhubarb, sugar, cornstarch, lemon juice, and vanilla extract, and refrigerate it in an airtight container. Additionally, you can mix the crust and topping ingredients ahead of time, storing them in the refrigerator for up to 3 days. When you're ready to bake, press the crust into the pan, add the chilled rhubarb filling, sprinkle the topping, and bake as directed. This method allows you to enjoy fresh-baked bars with minimal effort on busy days, ensuring your homemade treat remains just as delicious!

Tangy Rhubarb Bars Pairing Ideas

Treat yourself to delightful accompaniments that will elevate your Tangy Rhubarb Bars experience and add to your dessert joy!

  • Whipped Cream: A dollop of freshly whipped cream adds a creamy and sweet contrast to the tangy flavors.

  • Vanilla Ice Cream: Serve warm rhubarb bars with a scoop of vanilla ice cream for a deliciously melty experience.

  • Greek Yogurt: For a healthier twist, top with a spoonful of Greek yogurt. It’s creamy, tangy, and perfectly balances the sweetness!

  • Tea or Coffee: Pair with a hot cup of tea or coffee to enhance the flavors and add a cozy vibe to your treat time.

  • Fresh Berries: A side of fresh strawberries or raspberries brings a refreshing burst of flavor that complements the rhubarb.

  • Caramel Sauce: Drizzle some salted caramel sauce over the bars for an indulgent touch that harmonizes beautifully with their tartness.

  • Toasted Nuts: Add crunch by sprinkling some toasted almonds or walnuts on top. They add texture and enhance the overall flavor profile.

  • Mint Leaves: Garnish with fresh mint leaves for a pop of color and a hint of freshness that brightens every bite.

How to Store and Freeze Tangy Rhubarb Bars

Room Temperature: Keep the bars at room temperature in an airtight container for up to 3 days for the best texture and flavor.

Fridge: For longer freshness, store Tangy Rhubarb Bars in the refrigerator, covered, for up to 1 week. This helps maintain their taste and prevents spoilage.

Freezer: Freeze the bars by wrapping individual squares tightly in plastic wrap, then placing them in a freezer-safe bag. They can last for up to 3 months.

Reheating: To enjoy them warm, thaw in the fridge overnight and reheat in the microwave for about 15 seconds, or until warmed through.

Expert Tips for Tangy Rhubarb Bars

  • Choose Fresh Rhubarb: Use bright, firm rhubarb for the best tartness. Avoid any that looks wilted or slimy to ensure vibrant flavor.

  • Adjust Sweetness: Tailor the sugar to your taste! If you prefer a tangier bar, reduce the granulated sugar slightly, but don’t cut it too much or the filling may be too tart.

  • Prevent Sogginess: Ensure the crust is well-pressed and baked until lightly golden before adding the rhubarb mixture. This step keeps the base from absorbing too much moisture.

  • Cooling Is Key: Allow the bars to cool completely prior to cutting. This will help maintain their shape and prevent them from crumbling.

  • Experiment with Add-Ins: Feel free to personalize your Tangy Rhubarb Bars by adding chopped nuts, oats, or even a sprinkle of cinnamon for extra flavor!

Tangy Rhubarb Bars Recipe FAQs

How do I choose the best rhubarb for my bars?
Absolutely! Opt for firm, vibrant rhubarb stalks that are crisp and free from dark spots or wilting. The best rhubarb is usually a rich red hue, which indicates ripeness and flavor. Avoid any with a slimy appearance, as it may not taste fresh.

How should I store my Tangy Rhubarb Bars?
For optimum freshness, store your bars in an airtight container at room temperature for up to 3 days. If you have leftovers, pop them in the fridge for up to 1 week to preserve their delightful tanginess!

Can I freeze Tangy Rhubarb Bars?
Yes, you can! To freeze, wrap individual squares tightly in plastic wrap, then place them in a freezer-safe bag or container. These bars can be stored in the freezer for up to 3 months. When ready to enjoy, thaw in the fridge overnight and warm in the microwave for about 15 seconds.

What can I do if my rhubarb filling is too runny?
If your filling turns out a bit too runny, don't worry! You can add an extra tablespoon of cornstarch mixed with a little bit of cold water to the filling while cooking it over low heat until it thickens. Make sure to stir constantly, and then once thickened, proceed to bake as directed. This will help firm up the filling beautifully!

Are there any dietary considerations I should keep in mind?
While the Tangy Rhubarb Bars are vegetarian-friendly, if you have allergies, be cautious with the butter and flour. You can substitute with dairy-free butter and gluten-free flour to make the recipe accessible for those with specific dietary restrictions!

What if I want to make my Tangy Rhubarb Bars sweeter?
Very good question! If you prefer a sweeter flavor, simply increase the granulated sugar by 1 to 2 tablespoons in the rhubarb filling. It’s always fun to adjust based on your taste preferences! Enjoy the process of finding the perfect balance that suits your palate!

Tangy Rhubarb Bars

Deliciously Tangy Rhubarb Bars You’ll Crave Again!

Indulge in these Tangy Rhubarb Bars, a perfect blend of tart rhubarb and sweet sugar in a buttery crust.
Print Recipe Pin Recipe
Prep Time 15 minutes mins
Cook Time 40 minutes mins
Total Time 55 minutes mins
Course Uncategorized
Cuisine American
Servings 12 bars
Calories 180 kcal

Equipment

  • 9x9-inch square baking pan
  • mixing bowls
  • fork or pastry cutter

Ingredients
  

For the Rhubarb Filling

  • 2 cups Rhubarb, chopped choose fresh rhubarb for the best tart flavor!
  • 1 cup Granulated sugar balances the tartness and enhances sweetness.
  • 1 tablespoon Cornstarch thickens the filling perfectly.
  • 1 tablespoon Lemon juice adds a refreshing brightness.
  • ½ teaspoon Vanilla extract infuses a warm undertone.

For the Crust and Topping

  • 1 cup All-purpose flour forms the base for crumbly texture.
  • ½ cup Unsalted butter, softened brings richness and moisture.
  • ¼ cup Brown sugar adds a hint of caramel flavor.
  • ¼ teaspoon Salt enhances overall flavor.
  • ¼ teaspoon Baking powder helps create the perfect rise.
  • 1 large Egg binds everything together.

Instructions
 

Preparation

  • Preheat your oven to 350°F (175°C) and grease a 9x9-inch baking pan.
  • Combine rhubarb, sugar, cornstarch, lemon juice, and vanilla extract in a mixing bowl.
  • In another bowl, mix flour, butter, brown sugar, salt, and baking powder until coarse crumbs form.
  • Press two-thirds of the crumb mixture into the bottom of the greased pan.
  • Pour the rhubarb filling over the pressed crust.
  • Sprinkle the remaining crumb mixture over the rhubarb layer.
  • Bake for 35-40 minutes until golden brown and edges pull away slightly.
  • Allow to cool completely on a wire rack before slicing into squares.

Notes

For best results, use fresh rhubarb and allow bars to cool before cutting for a clean slice.

Nutrition

Serving: 1barCalories: 180kcalCarbohydrates: 30gProtein: 2gFat: 7gSaturated Fat: 4gMonounsaturated Fat: 3gCholesterol: 35mgSodium: 115mgPotassium: 150mgFiber: 1gSugar: 10gVitamin A: 300IUVitamin C: 5mgCalcium: 20mgIron: 1mg
Keyword baking, dessert, easy recipe, homemade, Sweet Treats, Tangy Rhubarb Bars
Tried this recipe?Let us know how it was!

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Welcome!

I’m Emilia Malwar, a passionate home baker who finds joy in creating cakes that bring families together.

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