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Classic Rhubarb Dream Bars

by Steve Rol

Updated on:

Close-up of golden brown Rhubarb Dream Bars with a creamy filling, dusted with powdered sugar, ready to serve.

Welcome to the delightful world of Rhubarb Dream Bars! These beloved bars offer a perfect harmony of sweet and tart, making them an irresistible dessert. Beyond its distinct flavor, rhubarb also offers several notable health benefits, including fiber and essential vitamins. With their simple, classic ingredients and straightforward preparation, these bars are incredibly easy to make. Get ready to enjoy a fantastic treat that brings comfort and flavor in every bite.

Why You’ll Love This Rhubarb Dream Bar Recipe

This Rhubarb Dream Bar recipe is a true winner, especially for busy home bakers. It combines incredible taste with effortless preparation.

  • Simple Ingredients: You only need a few common pantry staples for this delightful dessert.
  • Perfect Balance: The sweet filling perfectly complements the tart rhubarb for an amazing flavor.
  • Irresistible Texture: Enjoy a buttery, flaky shortbread crust topped with a creamy, rich filling.
  • Seasonal Delight: It’s the ultimate way to celebrate the arrival of fresh rhubarb each spring.
  • Crowd-Pleaser: Everyone loves these classic Rhubarb Dream Bars; they are perfect for potlucks and gatherings.
  • Beginner-Friendly: Clear, step-by-step instructions make this recipe approachable for all skill levels.

Ingredients

These humble ingredients combine to create truly magnificent Rhubarb Dream Bars.

For the Crust:

  • 2 cups all-purpose flour
  • 1/2 cup powdered sugar
  • 1 cup (2 sticks) unsalted butter, softened

For the Filling:

  • 4 large eggs
  • 2 cups granulated sugar
  • 1/2 cup all-purpose flour
  • 1 teaspoon salt
  • 4 cups diced rhubarb
  • OPTIONAL – 1/2 teaspoon ground cinnamon

Notes & Substitutions

Ensure your butter is softened for the crust but not melted; this creates the best crumbly texture. You can use fresh or frozen rhubarb for these dream bars. If using frozen, thaw it completely and drain any excess liquid well to prevent a watery filling. For an extra tender crust, try substituting a portion of the all-purpose flour with pastry flour. Feel free to swap cinnamon with a pinch of ground nutmeg or ginger for a different warm spice note in your rhubarb filling. Powdered sugar is crucial for a tender, melt-in-your-mouth crust, while granulated sugar gives the filling its distinct sweetness.

Equipment

Gathering your tools beforehand makes baking a breeze. You’ll need a standard 9×13 inch baking pan for these generous bars. Large mixing bowls will accommodate your crust and filling ingredients. An electric hand mixer or food processor makes quick work of mixing the crust. A whisk is perfect for combining the filling ingredients. Don’t forget your measuring cups and spoons for accuracy, and a rubber spatula for scraping bowls clean.

Instructions

Creating these delicious Rhubarb Dream Bars is a straightforward process. Follow these steps for a perfect outcome every time.

Preparing the Crust

Preheat your oven to 325°F (160°C). In a large mixing bowl, combine the 2 cups of all-purpose flour, 1/2 cup of powdered sugar, and 1 cup of softened unsalted butter. Use a food processor or an electric hand mixer to mix these ingredients until a coarse, crumbly texture forms. The mixture should resemble wet sand. Lightly grease a 9×13 inch baking pan. Press the crumbly mixture evenly into the bottom of the prepared pan, forming a compact layer. Use the bottom of a glass or your fingers to ensure it’s firmly packed. Par-bake the crust in the preheated oven for 15 minutes. This crucial step prevents a soggy crust and ensures a wonderfully crisp base for your Rhubarb Dream Bars.

Making the Filling

While the crust is par-baking, prepare your filling. In the same large mixing bowl (no need to wash if using a food processor for the crust!), lightly beat the 4 large eggs. Add the 2 cups of granulated sugar, 1/2 cup of all-purpose flour, 1 teaspoon of salt, and the optional 1/2 teaspoon of ground cinnamon to the beaten eggs. Blend these ingredients well with a whisk until smooth and fully combined. Gently fold in the 4 cups of diced rhubarb into the filling mixture. Ensure the rhubarb pieces are evenly coated. Once the crust has par-baked, carefully remove the pan from the oven. Pour the rhubarb filling evenly over the warm, par-baked crust. Spread it gently with your rubber spatula to create an even layer.

Baking and Cooling

Return the pan with the crust and filling to the preheated 325°F (160°C) oven. Bake for approximately 60 minutes, or until the center of the Rhubarb Dream Bars is set and the edges are lightly golden. The filling should no longer jiggle significantly when gently shaken. Remove the pan from the oven. It is absolutely essential to cool the bars completely on a wire rack at room temperature. This can take several hours. Once cooled to room temperature, chill the bars in the refrigerator for at least 2-3 hours, or preferably overnight, before slicing. Chilling allows the filling to fully set, making for clean, beautiful slices.

Pro Tips & Troubleshooting

Mastering these Rhubarb Dream Bars is easy with a few expert tips.

  • Preventing a Soggy Crust: Never skip par-baking the crust. This crucial step creates a barrier, preventing moisture from the filling from seeping in.
  • Achieving Perfect Doneness: The filling should be mostly set with a slight jiggle in the very center when done. Overbaking can make the filling rubbery.
  • Using Frozen Rhubarb: Thaw frozen rhubarb completely and drain excess liquid thoroughly. Toss the drained rhubarb with an extra tablespoon of flour before adding it to the filling; this absorbs extra moisture.
  • Evenly Diced Rhubarb: Aim for small, uniform rhubarb pieces (about 1/2 inch). This ensures they cook evenly and distribute throughout the bars.
  • Cooling Completely: Patience is key! Fully cooling and chilling the bars allows the filling to firm up, resulting in clean, perfect slices and a delightful texture.

Serving, Storage, & Variations

These delightful Rhubarb Dream Bars are versatile and store beautifully.

Serving Suggestions: Serve your chilled Rhubarb Dream Bars dusted with a little powdered sugar. They are also heavenly with a dollop of freshly whipped cream or a scoop of vanilla bean ice cream. The cool, creamy toppings perfectly complement the sweet-tart bars.

Storage: Store any leftover Rhubarb Dream Bars in an airtight container in the refrigerator for up to 3-5 days. The flavors actually meld and deepen over time, making them even more delicious the next day.

Freezing Instructions: For longer storage, freeze the baked and cooled bars. Slice them into individual servings, then wrap each tightly in plastic wrap and aluminum foil. Store in a freezer-safe bag or container for up to 3 months. Thaw in the refrigerator overnight before serving.

Flavor Variations: Introduce a bright twist by adding the zest of one orange or lemon to the filling. A pinch of ground cardamom also pairs wonderfully with rhubarb. For extra texture, consider topping your bars with a simple crumble topping before baking.

Fruit Combinations: Rhubarb is a fantastic team player. Try adding 1-2 cups of fresh or frozen (thawed and drained) strawberries or raspberries to the filling for a vibrant mixed-fruit bar.

Nutrition Information

Component Amount (per serving, estimated)
Calories 320 kcal
Total Fat 15g
Carbohydrates 45g
Protein 3g

FAQ

Conclusion

These Classic Rhubarb Dream Bars offer an unparalleled combination of tangy rhubarb and sweet, creamy filling, all on a buttery shortbread crust. This recipe is wonderfully easy to follow, making it perfect for both beginners and seasoned bakers. You now have everything you need to bake these delightful bars with confidence. We encourage you to try this recipe for Rhubarb Dream Bars and share your delicious creations. Happy baking!

Close-up of golden brown Rhubarb Dream Bars with a creamy filling, dusted with powdered sugar, ready to serve.

Classic Rhubarb Dream Bars

These beloved bars offer a perfect harmony of sweet and tart, making them an irresistible dessert. With simple, classic ingredients and straightforward preparation, these bars are incredibly easy to make.
Prep Time 20 minutes
Cook Time 1 hour 15 minutes
Total Time 1 hour 35 minutes
Servings: 12 bars
Course: Dessert, Snack
Cuisine: American
Calories: 320

Ingredients
  

  • 2 cups all purpose flour
  • 1/2 cup powdered sugar
  • 1 cup butter
  • 4 large eggs
  • 2 cups granulated sugar
  • 1/2 cup all purpose flour
  • 1 teaspoon salt
  • 4 cups diced rhubarb
  • OPTIONAL - 1/2 teaspoon ground cinnamon

Equipment

  • 9x13 inch baking pan
  • Large mixing bowls
  • Electric hand mixer or food processor
  • Whisk
  • Measuring cups
  • Measuring spoons
  • Rubber spatula
  • Wire rack

Method
 

  1. Preheat oven to 325F.
  2. Crust
  3. Mix the crust ingredients in a large bowl and mix with a food processor or hand mixer just until crumbly and combined.
  4. Spread the mixture over a well greased 9x13 pan and lightly pan down. Bake at 325F for 15 minutes.
  5. Filling
  6. In the same large bowl, lightly beat the eggs. Add the flour, sugar, salt and optional cinnamon and blend until well combined. Mix in the rhubarb and pour over the par baked crust.
  7. Bake at 325F for 60 minutes or until the center of the bars are set.
  8. Cool completely before serving. Store leftovers in the refrigerator.

Nutrition

Calories: 320kcalCarbohydrates: 45gProtein: 3gFat: 15gSaturated Fat: 9gCholesterol: 110mgSodium: 180mgPotassium: 50mgFiber: 2gSugar: 38gVitamin A: 100IUVitamin C: 5mgCalcium: 20mgIron: 1mg

Notes

Ensure your butter is softened for the crust but not melted; this creates the best crumbly texture. You can use fresh or frozen rhubarb; if using frozen, thaw completely and drain any excess liquid well. For an extra tender crust, try substituting a portion of the all-purpose flour with pastry flour. Feel free to swap cinnamon with a pinch of ground nutmeg or ginger. Powdered sugar is crucial for a tender crust, while granulated sugar gives the filling its distinct sweetness. Never skip par-baking the crust to prevent sogginess. The filling should have a slight jiggle in the center when done; overbaking can make it rubbery. For frozen rhubarb, toss with an extra tablespoon of flour after draining. Aim for small, uniform rhubarb pieces (about 1/2 inch). Fully cooling and chilling the bars is essential for clean, perfect slices. Store any leftover bars in an airtight container in the refrigerator for up to 3-5 days. For longer storage, freeze baked and cooled bars, individually wrapped, for up to 3 months. Thaw in the refrigerator overnight before serving.
Nutrition information is estimated based on common ingredients and serving sizes and may vary.

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