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Rhubarb Shortbread Bars

Lisa

By Lisa

Feb 26, 2026

15 min prep
30 min cook
12 servings
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Rhubarb Shortbread Bars

Welcome to a sweet escape where tangy rhubarb meets buttery shortbread in the most delightful way! These Rhubarb Shortbread Bars are not just a dessert; they are a celebration of spring and summer flavors that will have your taste buds dancing with joy. Indulge in the contrasting textures of the melt-in-your-mouth shortbread base and the luscious rhubarb filling, perfect for any gathering or just a cozy night in.

Get ready to create a treat that’s as beautiful as it is delicious. With minimal effort and a handful of ingredients, these bars will keep you coming back for more. Let’s dive into this easy recipe that’s destined to become a family favorite!

Why You'll Love This Recipe

  • Perfectly Balanced Sweetness: The combination of tangy rhubarb and sweet shortbread creates a harmonious flavor profile that is simply irresistible.
  • Simple to Make: With straightforward steps, you can whip these bars up in no time, making them a great choice for even novice bakers.
  • Versatile Treat: Ideal for picnics, potlucks, or just a sweet treat at home, these bars are sure to impress your friends and family.
  • Fresh and Fruity: The use of fresh rhubarb guarantees a vibrant taste that screams spring, making each bite a delightful experience.

About the Ingredients

All-Purpose Flour

This staple ingredient provides the structure for the shortbread, creating a sturdy yet tender base for the bars.

Granulated Sugar

Used in both the crust and the filling, sugar adds sweetness and helps balance the tartness of the rhubarb.

Salt

A pinch of salt enhances the flavors and brings out the sweetness in the dough and the filling.

Unsalted Butter

Cold, cubed butter is key to achieving that rich, buttery flavor and crumbly texture in the shortbread crust.

Fresh Rhubarb

The star of the show! Freshly chopped rhubarb provides a tangy burst of flavor that pairs beautifully with the sweetness of the sugar.

Cornstarch

This thickening agent helps to set the rhubarb filling, ensuring it holds together perfectly when sliced.

Large Eggs

Lightly beaten eggs contribute to the filling's richness and help bind the ingredients together beautifully.

Tips & Tricks

Chill the Butter

Ensure your butter is cold to achieve that flaky, tender shortbread texture.

Use Fresh Rhubarb

Fresh rhubarb gives the best flavor; avoid using frozen for the best results.

Let Cool Completely

Allow the bars to cool fully before cutting to ensure clean slices.

Customize the Sweetness

Adjust the sugar in the filling based on your taste preferences and the tartness of your rhubarb.

Pro Tips

  • Use Room Temperature Eggs: This helps to create a smoother filling that blends well with the other ingredients.
  • Grease the Pan Well: A properly greased baking dish ensures that your shortbread bars release easily after baking.
  • Check for Set Filling: The filling should be set and lightly golden on top; keep an eye on it to avoid over-baking.
  • Slice with a Sharp Knife: For clean edges, use a sharp knife and clean it between cuts.

Step-by-Step Instructions

Preheat the Oven

Start by preheating your oven to 350°F (175°C) to ensure it’s ready for your delicious bars.

Prepare the Shortbread Crust

In a mixing bowl, combine flour, 1/2 cup of sugar, and salt. Cut in the cold butter until the mixture resembles coarse crumbs.

Press the Crust Into the Pan

Firmly press the shortbread mixture into the bottom of a greased 9x13 inch baking dish to form a solid base.

Mix the Rhubarb Filling

In another bowl, mix chopped rhubarb, 1 1/2 cups of sugar, cornstarch, vanilla, salt, and beaten eggs until well combined.

Pour and Bake

Pour the rhubarb filling over the shortbread crust and bake in the preheated oven for 30-35 minutes, or until the filling is set and the top is lightly golden.

Delicious Variations

Add a Citrus Twist

Incorporate lemon or lime zest into the rhubarb filling for a refreshing citrus flavor that brightens the bars.

Mix in Nuts

Add chopped walnuts or pecans to the crust for a delightful crunch that complements the soft filling.

Top with Whipped Cream

Serve the bars with a dollop of freshly whipped cream for an extra touch of indulgence.

How to Store Rhubarb Shortbread Bars

Refrigerator

Store the bars in an airtight container in the fridge for up to 5 days to maintain freshness.

Freezer

Freeze the bars by wrapping them tightly in plastic wrap and then in foil. They can be stored for up to 3 months.

Reheating

Reheat individual bars in the microwave for about 10-15 seconds, just until warm.

Frequently Asked Questions

Can I use frozen rhubarb?

While fresh is best, you can use frozen rhubarb; just ensure it's thawed and drained before using.

How can I tell when the bars are done baking?

The filling should be set and the top should be lightly golden; a toothpick should come out clean or with just a few moist crumbs.

Can I double this recipe?

Yes, you can double the recipe and use a larger baking dish to accommodate the increased volume.

What can I serve with these bars?

These bars pair wonderfully with vanilla ice cream or a drizzle of chocolate sauce for a decadent treat.

Now that you have the secret to making these heavenly Rhubarb Shortbread Bars, it’s time to get baking! Your friends and family will thank you for this delightful treat that captures the essence of spring. Enjoy every sweet, tangy bite!

Rhubarb Shortbread Bars

Rhubarb Shortbread Bars

Indulge in the delightful contrast of tangy rhubarb and buttery shortbread in these Rhubarb Shortbread Bars, perfect for any spring or summer gathering. These easy-to-make treats will keep your taste buds craving more!

15 min
Prep Time
30 min
Cook Time
12
Servings
350 kcal
Calories

Ingredients

Instructions

  1. 1 Preheat the oven to 350°F (175°C).
  2. 2 In a mixing bowl, combine flour, 1/2 cup sugar, and salt.
  3. 3 Cut in the cold butter until the mixture resembles coarse crumbs.
  4. 4 Press the mixture into the bottom of a greased 9x13 inch baking dish.
  5. 5 In another bowl, mix chopped rhubarb, 1 1/2 cups sugar, cornstarch, vanilla, salt, and beaten eggs until well combined.
  6. 6 Pour the rhubarb filling over the shortbread crust.
  7. 7 Bake in the preheated oven for 30-35 minutes, or until the filling is set and the top is lightly golden.
  8. 8 Allow the bars to cool completely before slicing.

Chef's Note

Store leftovers in an airtight container at room temperature for up to 3 days or refrigerate for up to 5 days. These bars freeze well for up to 2 months, just be sure to thaw overnight in the fridge before serving.

Servings: 12

Cuisine: American

Course: Dessert

Nutrition (per serving): 6gg protein