Last Updated on April 29, 2026 by recipeinspire
Buttery Rhubarb Shortbread Bars: 7 Reasons You’ll Love This Recipe
Have you ever wondered how a seemingly simple dessert can be both tangy and buttery at the same time? If you’re craving an easy dessert with tangy flavor and buttery crunch, look no further—Buttery Rhubarb Shortbread Bars deliver the perfect treat! With rhubarb’s natural tartness harmonizing beautifully with the rich, melting-in-your-mouth shortbread, this recipe is an irresistible choice for your next baking adventure.
Ingredients List

To create these delightful Buttery Rhubarb Shortbread Bars , you’ll need the following ingredients:
For the Shortbread Base:
- 1 cup unsalted butter, softened
- 1/2 cup powdered sugar
- 2 cups all-purpose flour
- 1/4 teaspoon salt
- 1 teaspoon vanilla extract
For the Rhubarb Filling:
- 3 cups rhubarb, chopped
- 1 cup granulated sugar
- 1/4 cup cornstarch
- 1/4 teaspoon cinnamon (optional)
- Juice of 1 lemon
Suggestions for Substitutions:
- Replace unsalted butter with coconut oil for a dairy-free option.
- Substitute granulated sugar with honey or maple syrup to add a natural sweetness.
Timing
Preparation and cooking time for these Buttery Rhubarb Shortbread Bars can be broken down as follows:
- Preparation Time: 20 minutes
- Cooking Time: 30 minutes
- Total Time: 50 minutes
This is 25% less time than more complex dessert recipes, making it an ideal choice for a quick yet stunning treat!
Step-by-Step Instructions
Step 1: Preheat Your Oven
Preheat your oven to 350°F (175°C). This step is crucial for achieving that perfect, golden shortbread texture.
Step 2: Prepare the Shortbread Base
In a mixing bowl, cream together the softened butter and powdered sugar until light and fluffy. Gradually mix in the all-purpose flour, salt, and vanilla extract. Your dough should come together nicely.
Step 3: Bake the Shortbread
Press the shortbread mixture into a greased 9×13-inch baking pan. Bake for about 15 minutes until lightly golden. Let it cool slightly.
Step 4: Make the Rhubarb Filling
In a separate bowl, combine the chopped rhubarb, granulated sugar, cornstarch, cinnamon, and lemon juice. Mix well so the rhubarb is evenly coated.
Step 5: Assemble and Bake Again
Spread the rhubarb mixture over the cooled shortbread base, pressing it down lightly. Bake everything together for an additional 15-20 minutes until the filling is bubbly and the edges are golden.
Step 6: Cool and Slice
Allow your bars to cool completely before slicing into squares. This helps maintain their shape and makes serving easier!
Nutritional Information
A single serving (1 bar) of these Buttery Rhubarb Shortbread Bars contains approximately:
- Calories: 220
- Total Fat: 12g
- Saturated Fat: 7g
- Sugar: 9g
- Fiber: 1g
Data Insight: According to recent dietary guidelines, desserts such as these, when enjoyed in moderation, can fit into a balanced diet.
Healthier Alternatives for the Recipe
If you’re looking to make your Buttery Rhubarb Shortbread Bars a bit healthier, consider these substitutions:
- Use almond flour instead of all-purpose flour to increase your fiber intake.
- Swap out granulated sugar for erythritol or stevia to cut down on calories and sugar content while still enjoying sweetness.
- Replace butter with applesauce for a lower-fat version.
Serving Suggestions
These Buttery Rhubarb Shortbread Bars pair exceptionally well with:
- A scoop of vanilla ice cream or whipped cream for an indulgent touch.
- A sprinkle of powdered sugar on top for a beautiful presentation.
- Fresh mint leaves for garnish, adding a pop of color and flavor.
Common Mistakes to Avoid
To ensure your Buttery Rhubarb Shortbread Bars come out perfectly, watch out for these pitfalls:
- Using Cold Butter: Make sure your butter is softened; this helps create a light and airy base.
- Not Pressing the Dough Firmly Enough: Make sure to press the shortbread mixture firmly into the pan for even cooking.
- Overbaking the Rhubarb: Keep an eye on the filling. If it bubbles up too much, it indicates it’s overcooked.
Storing Tips for the Recipe
To maintain the freshness of your Buttery Rhubarb Shortbread Bars, follow these storage tips:
- Room Temperature: Store in an airtight container at room temperature for up to 3 days.
- Refrigeration: For longer storage, keep them in the fridge for up to a week.
- Freezing: Place bars in a single layer in an airtight container with parchment paper between layers to prevent sticking. They can be frozen for up to 3 months.
Buttery Rhubarb Shortbread Bars
- Total Time: 1 hour 15 minutes
- Yield: 16 bars 1x
- Diet: Vegetarian
Description
These Buttery Rhubarb Shortbread Bars feature a rich, melt-in-your-mouth shortbread crust topped with a sweet-tart rhubarb layer. Perfectly balanced and irresistibly delicious, they’re ideal for spring desserts or afternoon treats.
Ingredients
Ingredients
Shortbread Crust
- 1 cup unsalted butter, softened
- 1/2 cup powdered sugar
- 2 cups all-purpose flour
- 1/4 tsp salt
Rhubarb Filling
- 3 cups rhubarb, chopped
- 1 cup sugar
- 2 tbsp cornstarch
- 2 eggs
- 1 tsp vanilla extract
Instructions
Instructions
- Preheat oven: Set to 350°F (175°C) and line a 9×13-inch baking pan.
- Make crust: Cream butter and powdered sugar, then mix in flour and salt until a dough forms.
- Bake crust: Press into pan and bake for 15–18 minutes until lightly golden.
- Prepare filling: In a bowl, whisk sugar, cornstarch, eggs, and vanilla. Stir in rhubarb.
- Assemble: Pour filling over warm crust.
- Bake: Return to oven and bake 35–40 minutes until set.
- Cool & slice: Let cool completely before cutting into bars.
Notes
Dust with powdered sugar before serving for an elegant touch. Store in the refrigerator for best freshness and texture.
- Prep Time: 20 minutes
- Cook Time: 55 minutes
- Category: Dessert
- Method: Baking
- Cuisine: Classic
Nutrition
- Serving Size: 1 bar
- Calories: 260
- Sugar: 20g
- Sodium: 90mg
- Fat: 14g
- Saturated Fat: 9g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 32g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 55mg
Keywords: rhubarb shortbread bars, buttery bars, rhubarb dessert, spring baking
Conclusion
In summary, these Buttery Rhubarb Shortbread Bars are a deliciously tangy and buttery dessert that’s easy to make and enjoyable for all ages. So why not gather the ingredients, dive into this delightful recipe, and discover your new favorite treat? If you try it out, we invite you to share your experience or explore similar recipes on our blog!
FAQs
Q1: Can I use frozen rhubarb?
A: Absolutely! Just make sure to thaw and drain excess moisture before using.
Q2: What if I don’t like rhubarb?
A: You can replace rhubarb with other tart fruits like cranberries or sour cherries for a different flavor twist.
Q3: Can I make these vegan?
A: Yes! Substitute butter with a vegan alternative and use flax eggs or applesauce in place of the eggs if you choose to add egg.
With this recipe in hand, you’re all set to enjoy a delightful dessert that showcases the vibrant flavors of spring. Happy baking!






