Old Fashioned Rhubarb Bars – Irresistibly Delicious Treat

Old Fashioned Rhubarb Bars combine a buttery crumb crust with a tangy rhubarb filling, chilled for crisp slices. Baked in an 8×8-inch dish, they balance sweet and tart flavors. Remove from the oven when the filling holds its shape, then refrigerate before serving for maximum appeal.

Why This Old Fashioned Rhubarb Bars Recipe Works

Old Fashioned Rhubarb Bars deliver restaurant-quality results with simple techniques. The crumb crust creates a tender base without becoming soggy, while the rhubarb filling develops a perfect set. Refrigerating the bars solidifies the filling, enhancing the flavor contrast between the crust and fruit layers.

These bars can double or triple easily, making them ideal for family gatherings. The custard-like filling prevents the rhubarb from becoming overly wet, a common challenge in fruit desserts. Baking in a single 8×8-inch pan reduces cleanup time compared to individual ramekins.

Ingredients

Step-by-Step Instruction

Prepare Baking Dish

Grease 8×8-inch baking dish with cooking spray for easy release.

Mix Crust Mixture

In large bowl, whisk together 1 cup all-purpose flour and 5 tbsp powdered sugar.

Cut in Butter

Add cold diced butter, using pastry cutter until mixture forms pea-sized crumbs.

Press Crust Into Dish

Firmly press mixture into bottom of prepared dish using flat measuring cup.

Bake Crust

Bake at 350°F (175°C) for 15 minutes until golden. Allow to cool slightly.

Prepare Filling

In separate bowl, mix ¼ cup flour, 1 cup sugar, 1 tbsp cornstarch, and ¾ tsp salt.

Combine Wet Ingredients

Whisk in beaten eggs until smooth, then fold in 2 cups chopped rhubarb.

Assemble and Bake

Pour filling over crust. Bake 38-45 more minutes until center is firm.

Chill Before Slicing

Let cool completely, then refrigerate 2 hours. Cut into 16 squares after chilling.

Chef Tips for Perfect Old Fashioned Rhubarb Bars

• Chill flour mixture 30 minutes before baking to prevent crust spreading

• Measure rhubarb by volume, not weight, to avoid underfilling

• Tap sides of crust with hands after pressing to remove trapped air

• Bake on center rack for even browning across entire surface

• Insert toothpick diagonally across filling to test doneness

• Freeze pre-sliced bars in air-tight containers for up to 2 months

Common Mistakes to Avoid

• Preheating while mixing: Combine ingredients after oven reaches 350°F

• Overworking dough: Form crumb mixture quickly to maintain butter integrity

• Microwaving frozen rhubarb: Thaw in colander to prevent overly wet filling

• Substituting baking powder: Leavening agents disrupt intended custard texture

• Opening oven frequently: Heat loss increases baking time by 10-15 minutes

Variations and Substitutions

Serving Suggestions and Pairings

Serve Old Fashioned Rhubarb Bars with vanilla ice cream for texture contrast. Present with fresh mint leaves at spring picnics. Frozen lemonade complements the tart flavor during warm weather gatherings.

Storage and Reheating

Nutritional Information

Frequently Asked Questions

Can I use frozen rhubarb for Old Fashioned Rhubarb Bars?

Yes, frozen rhubarb works well if properly thawed. Drain excess moisture in colander to prevent watery filling. For best results, use within 12 months of freezing.

How to tell when Old Fashioned Rhubarb Bars are done?

Jiggle the pan gently. When filling no longer sloshes and holds its shape, they’re ready. Insert toothpick diagonally – it should come out mostly clean with mostly set custard.

Why is my rhubarb crust greasy?

Melted butter creates greasy crusts. Keep cold butter in fridge until use. If working with warm butter, chill mixture 30 minutes before baking to maintain structure.

How far ahead can I make these bars?

Prepare up to 24 hours in advance. Wrap cooled bars in plastic wrap and store in refrigerator. Custard filling continues setting as it chills. Freeze unbaked if needed for longer storage.

Best way to cut clean rhubarb bars?

Chill in refrigerator for 4 hours. Allow knife to remain in filling for 5 seconds between each slice to create sharp edges. Use a straight motion without twisting the blade for clean cuts.

Old Fashioned Rhubarb Bars Conclusion

Old Fashioned Rhubarb Bars offer timeless appeal through their perfect crust-to-filling balance. The golden crust and tangy custard develop complex flavors as they chill. Prepare these bars in advance for any spring or summer celebration. Share this recipe with loved ones who appreciate traditional desserts.

Old Fashioned Rhubarb Bars – Irresistibly Delicious Treat

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• Author: Aleena
• Total Time: 68
• Yield: 16 bars
• Diet: Vegetarian

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Description

Buttery crumb crust topped with tangy rhubarb filling, baked to perfection. Chilling enhances the crisp texture and flavor contrast. Ideal for family gatherings or dessert cravings!

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Ingredients

1 cup all-purpose flour
5 tbsp powered sugar
½ cup cold butter
1 cup granulated sugar
1 tbsp cornstarch
¾ tsp salt
2 large eggs
2 cups chopped rhubarb

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Instructions

Grease 8×8-inch baking dish with cooking spray
Whisk 1 cup flour and 5 tbsp powdered sugar
Cut in cold butter until pea-sized crumbs form
Press mixture into bottom of dish
Bake at 350°F (175°C) for 15 minutes until golden
In separate bowl, mix ¼ cup flour, 1 cup sugar, 1 tbsp cornstarch, and ¾ tsp salt
Whisk in beaten eggs until smooth
Fold in chopped rhubarb
Pour mixture over baked crust
Bake bars for 38 minutes at 350°F (175°C) or until set
Cool completely before refrigerating for 2 hours prior to slicing

Notes

Use gluten-free flour for gluten-free version
Vegetable shortening can replace butter for dairy-free
Rhubarb may be frozen and thawed
Omit salt for low-sodium variation
Aquafaba (3 tbsp) replaces eggs for vegan option

• Prep Time: 15
• Cook Time: 53
• Category: Breakfast
• Method: Baking
• Cuisine: American