Strawberry Rhubarb Shortbread Bars (Easy Buttery Dessert Recipe with Sweet-Tart Filling)

There’s nothing better than an easy dessert that tastes like it took hours to make! These Strawberry Rhubarb Shortbread Bars are a delightful mix of sweet, tart, and buttery goodness, all in one simple recipe. If you love the classic strawberry rhubarb combo, this dessert will become your new favorite! Made in one pan and ready in under an hour, these bars 

Method

Preheat & Prep

Start by preheating your oven to 350°F (175°C). This ensures the oven reaches the right temperature before you begin baking. While the oven is heating, prepare an 8×8-inch baking tray by lining it with parchment paper. This will prevent the bars from sticking to the pan and make removal much easier after baking.

Make the Crust

To create the crust, start by cutting the cold butter into small cubes. In a large mixing bowl, add the cold cubed butter and eggs, then mix them together lightly. Slowly incorporate the flour, white sugar, brown sugar, cinnamon, and vanilla extract into the mixture. Using a fork or a pastry cutter, blend everything until the mixture becomes crumbly. The cold butter is key here  it helps form a light, buttery shortbread crust that holds the bars together beautifully.

Press & Layer

Once the dough is ready, take three-fourths of the mixture and press it firmly into the bottom of the prepared baking pan. Make sure to distribute it evenly so that the crust bakes uniformly. To help compact the crust, use the bottom of a glass cup or a spatula to press it down until it forms a solid base. This step is crucial as it prevents the bars from falling apart when sliced.

Prepare the Filling

In a separate bowl, combine the diced rhubarb and strawberries. Make sure the pieces are finely diced to ensure even baking and a balanced texture. Add two tablespoons of white sugar, one tablespoon of lemon juice, and one tablespoon of cornstarch to the fruit mixture. Stir well until all the ingredients are evenly combined and the fruit is coated in the cornstarch mixture. The cornstarch helps absorb the excess liquid from the fruit while baking, preventing the bars from becoming too soggy.

Assemble the Bars

Carefully spread the prepared strawberry-rhubarb mixture over the pressed crust. Make sure the fruit is evenly distributed so that each bite contains a perfect balance of sweet and tart flavors. Once the filling is in place, take the remaining one-fourth of the dough and crumble it over the top. The crumbles should be in small to medium chunks, creating a beautiful streusel-like topping when baked.

Bake

Place the tray in the preheated oven and bake for 45 minutes. During this time, the crust will turn golden brown, and the fruit filling will bubble slightly as it thickens. Check the bars towards the end of the baking time to ensure they don’t overbrown. The top should be slightly crisp, and the filling should be set but not overly dry.

Cool & Slice

Once the bars are baked to perfection, remove them from the oven and allow them to cool completely in the pan. This step is very important because if you try to cut them while they’re still warm, they may fall apart. Letting them cool allows the filling to set and the crust to firm up. Once they’ve reached room temperature, carefully lift the parchment paper out of the pan and place it on a cutting board. Use a sharp knife to slice the bars into even squares or rectangles, depending on your preference.

Enjoy!

Now, it’s time to dig in! These Strawberry Rhubarb Shortbread Bars are delightful on their own, but for an extra indulgence, serve them with a scoop of vanilla ice cream or a dollop of whipped cream. Whether you enjoy them warm or chilled, they’re sure to impress!

are foolproof trust me! Let’s get baking.

Necessary Tools

To make these bars with ease, you’ll need:

  • 8×8 baking tray
  • Parchment paper
  • Mixing bowls
  • Measuring cups and spoons
  • Spatula or wooden spoon
  • Knife for dicing fruit
  • A glass cup (for pressing the crust)

Strawberry Rhubarb Shortbread Bars

Recipe by George Mendes
0.0 from 0 votes
Cuisine: AmericanDifficulty: Easy
Servings

15

servings
Prep time

15

minutes
Cooking time

45

minutes
Total time

1

hour 

Ingredients

  • For the Crust

  • 3 cups flour

  • 1/2 cup white sugar

  • 1/2 cup brown sugar

  • 2 eggs

  • 1/2 tsp cinnamon

  • 1/2 tsp vanilla

  • 1 cup butter, cold and cubed

  • For the Filling

  • 1 3/4 cups rhubarb, diced finely

  • 1 3/4 cups strawberries, diced finely

  • 2 tbsp white sugar

  • 1 tbsp lemon juice

  • 1 tbsp cornstarch

Directions

  • Preheat & Prep: Start by preheating your oven to 350°F (175°C). Line an 8×8 baking tray with parchment paper for easy removal later.
  • Make the Crust: In a bowl, mix together the cold cubed butter and eggs. Gradually add in the flour, sugars, cinnamon, and vanilla, stirring until you get a crumbly dough.
  • Press & Layer: Take 3/4 of the dough and press it firmly into the bottom of the lined baking pan. Use the bottom of a glass cup or a spatula to make sure it’s packed in evenly.
  • Prepare the Filling: In another bowl, combine the strawberries and rhubarb with sugar, lemon juice, and cornstarch. Stir well so the fruit is fully coated and ready to work its magic!
  • Assemble the Bars: Spread the fruit mixture evenly over the pressed crust. Then, take the remaining 1/4 of the dough and crumble it over the top in small chunks.
  • Bake: Place the tray in the oven and bake for 45 minutes, or until the top is golden brown.
  • Cool & Slice: Let the bars cool completely before cutting into squares. This helps them firm up and makes slicing much easier.
  • Enjoy! Serve as-is or pair with a scoop of vanilla ice cream for the ultimate treat!

Notes

  • Use cold butter! This is the secret to a perfectly crumbly and delicious crust.
  • Don’t overmix the crust dough. It should be slightly crumbly but hold together when pressed.
  • Let the bars cool completely before cutting. If you try to cut them while warm, they may fall apart.
  • Use parchment paper in the baking pan for easy removal.
  • Finely dice the rhubarb and strawberries so they bake evenly and don’t create soggy spots.

Serving Suggestions

  • Serve warm or chilled – they’re delicious both ways!
  • Top with whipped cream or a scoop of vanilla bean ice cream.
  • Drizzle with a honey glaze or powdered sugar for an extra fancy touch.
  • Pair with a cup of tea or coffee for the perfect afternoon snack.

Fun Fact

Did you know that rhubarb is technically a vegetable, not a fruit? Even though it’s used in sweet treats, it belongs to the same family as sorrel and buckwheat. Its natural tartness makes it the perfect balance for sweet strawberries!

Conclusion

And that’s it! Strawberry Rhubarb Shortbread Bars are the ultimate easy dessert that tastes like it took way more effort. With a buttery crust, sweet and tart filling, and a crumble topping, these bars are a must-try for anyone who loves fruity desserts. Whether you’re making them for a summer picnic, a cozy treat, or just because this recipe is foolproof and guaranteed to impress!

George Mendes

Writer & Blogger

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