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Rhubarb Shortbread Bars

Lisa

By Lisa

Feb 26, 2026

15 min prep
30 min cook
16 servings
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Rhubarb Shortbread Bars

Welcome to a slice of heaven! These Rhubarb Shortbread Bars are the perfect balance of buttery goodness and tart sweetness. With a golden, crumbly crust and a luscious rhubarb filling, they promise to be a hit at any gathering or simply as a delightful treat for yourself. Let’s dive into this scrumptious recipe that will have your taste buds dancing!

Imagine the irresistible aroma wafting through your kitchen as these bars bake to perfection. Each bite offers a melt-in-your-mouth experience, combining the rich flavor of shortbread with the fresh zing of rhubarb. Trust me, you won’t want to stop at just one!

Why You'll Love This Recipe

  • Buttery Shortbread Crust: A melt-in-your-mouth base that perfectly complements the tart rhubarb.
  • Easy to Make: Simple steps make these bars a breeze, perfect for bakers of all levels.
  • Perfectly Tart: The tangy rhubarb filling provides a refreshing contrast that balances the sweetness.
  • Impressive Presentation: These bars look stunning and are sure to impress your guests at any gathering.

About the Ingredients

Fresh Rhubarb, Chopped

Rhubarb adds a delightful tartness that cuts through the sweetness, making each bite refreshing and unique.

Granulated Sugar

This sweetener balances the tangy flavor of rhubarb, ensuring the filling is both sweet and tangy.

Cornstarch

Acts as a thickening agent, helping to create a luscious filling that holds together beautifully.

Vanilla Extract

Enhances the overall flavor profile, adding a warm, aromatic note that complements the rhubarb perfectly.

Salt

A pinch of salt brings out the sweetness and balances the flavors, making the bars even more delicious.

Unsalted Butter

Cold and cubed, this is the key to creating a flaky, melt-in-your-mouth crust that serves as a perfect base.

All-Purpose Flour

Provides structure to the crust, ensuring it’s sturdy enough to hold the delightful filling.

Tips & Tricks

Use Fresh Rhubarb

Fresh rhubarb yields the best flavor and texture, so if you can, opt for it over frozen.

Chill Your Butter

Ensure your butter is cold to create a flakier crust; this is crucial for that melt-in-your-mouth texture.

Don’t Overmix the Crust

Mix just until combined to keep the crust tender and prevent it from becoming tough.

Let Them Cool Completely

Patience is key! Allow the bars to cool in the pan before cutting to ensure clean slices.

Pro Tips

  • Use Room Temperature Ingredients: Ensure your eggs are at room temperature for better integration into the filling.
  • Adjust Sweetness: Feel free to tweak the sugar amount based on the tartness of your rhubarb.
  • Experiment with Flavors: Add a hint of lemon zest to the filling for an extra zing!
  • Serve with Whipped Cream: A dollop of cream on top elevates these bars to a whole new level.

Step-by-Step Instructions

Prepare Your Oven and Pan

Preheat your oven to 350°F (175°C) and line a 9x13-inch baking dish with parchment paper for easy removal.

Make the Crust Mixture

Combine flour, sugar, and salt in a large bowl. Add in the cold, cubed butter and mix until crumbly, saving one-third for the topping.

Form the Base

Press two-thirds of the oat mixture firmly into the bottom of the prepared dish to create a solid crust.

Create the Rhubarb Filling

In a separate bowl, mix the chopped rhubarb, granulated sugar, cornstarch, and vanilla until well combined.

Assemble and Bake

Spread the rhubarb mixture over the crust and sprinkle the reserved oat topping on top. Bake for 40-45 minutes until golden brown and bubbly.

Delicious Variations

Berry Bliss

Add a mix of fresh strawberries or blueberries to the rhubarb filling for a delicious twist.

Coconut Shortbread

Incorporate shredded coconut into the crust for added texture and a hint of tropical flavor.

Nutty Surprise

Mix in chopped nuts like walnuts or pecans into the crust for a crunchy element that contrasts beautifully with the soft filling.

How to Store Rhubarb Shortbread Bars

Refrigerator

Keep the bars in an airtight container in the fridge for up to one week.

Freezer

Wrap the bars in plastic wrap and foil, then freeze for up to three months for a delicious frozen treat.

Reheating

Warm the bars in the microwave for a few seconds or enjoy them chilled straight from the fridge.

Frequently Asked Questions

Can I use frozen rhubarb?

Yes, frozen rhubarb can be used, but make sure to thaw and drain excess moisture before mixing.

How do I know when the bars are done?

The topping should be golden brown, and the filling should be bubbly when fully baked.

Can I make these bars gluten-free?

Absolutely! Substitute all-purpose flour with a gluten-free blend suitable for baking.

What can I serve with these bars?

These bars are delicious on their own, but serve them with whipped cream or vanilla ice cream for an extra treat!

Now that you have the recipe, it’s time to get baking! Trust me, these Rhubarb Shortbread Bars will become a cherished favorite in your home. Enjoy every delectable bite!

Rhubarb Shortbread Bars

Rhubarb Shortbread Bars

Indulge in the delightful combination of buttery shortbread and tangy rhubarb in these Rhubarb Shortbread Bars, perfect for any occasion and guaranteed to impress your guests.

15 min
Prep Time
30 min
Cook Time
16
Servings
350 kcal
Calories

Ingredients

Instructions

  1. 1 Preheat oven to 350°F (175°C) and line a 9x13-inch baking dish with parchment paper.
  2. 2 Combine flour, rolled oats, brown sugar, baking powder, and salt in a large bowl. Stir in melted butter until crumbly. Reserve one-third for topping.
  3. 3 Press two-thirds of the oat mixture firmly into the bottom of the prepared dish to form crust.
  4. 4 Mix strawberries, rhubarb, granulated sugar, cornstarch, lemon juice, and vanilla in a separate bowl until well combined.
  5. 5 Spread the fruit filling evenly over the crust, then sprinkle the reserved oat mixture on top.
  6. 6 Bake for 40-45 minutes until topping is golden brown and filling is bubbly.
  7. 7 Cool completely in the baking dish, then cut into 16 bars and serve.

Chef's Note

These bars can be stored in an airtight container for up to 5 days. For a twist, consider adding strawberries to enhance the sweetness and color of the filling.

Servings: 16

Cuisine: American

Course: Dessert

Nutrition (per serving): 6gg protein