Tangy Rhubarb Custard Bars Recipe: A Delicious Springtime Treat

Rhubarb custard bars are a delightful dessert that perfectly blends tart rhubarb with a sweet, creamy custard on a buttery crust. Ideal for spring and early summer when rhubarb is at its peak, these bars are an easy-to-make treat everyone will enjoy. Whether served at picnics, potlucks, or a simple family dessert, their bright flavor and tender texture make them a refreshing change from typical sweets.

Why Everyone Will Love This Recipe

These rhubarb custard bars combine the natural tanginess of rhubarb with a smooth, vanilla-infused custard that melts in your mouth. The crisp crust adds a wonderful contrast, creating layers of flavor and texture in every bite. Plus, the recipe is straightforward—no fancy techniques required—making it accessible for bakers of all skill levels. It’s a perfect balance of sweet and tart, ideal for those who love a less sugary dessert.

What Is Rhubarb Custard Bars?

Rhubarb custard bars are a baked dessert bar that features fresh rhubarb baked into a custard filling atop a shortbread-like crust. Rhubarb itself is a vibrant, tangy vegetable often used in desserts to add a bright tartness. This dessert originated as a homestyle favorite in American kitchens, particularly in regions where rhubarb grows abundantly. It’s considered a nostalgic comfort food that celebrates seasonal produce with a creamy twist.

Pro Tips for the Best Rhubarb Custard Bars

• Use fresh rhubarb stalks for the best flavor and texture; frozen rhubarb can release excess moisture.
• Cut rhubarb into small, even pieces to ensure even baking and consistent tartness.
• Pre-bake the crust until lightly golden to avoid sogginess under the custard layer.
• Don’t overbake the custard—remove the bars when the center is just set but still slightly jiggly.
• Let bars cool completely before cutting to get clean, neat slices.
• Dust with powdered sugar for a pretty finish and extra sweetness contrast.

Frequently Asked Questions

Can I Use Frozen Rhubarb?

Yes, but thaw and drain frozen rhubarb thoroughly to reduce extra moisture that can make the bars soggy.

How Should I Store Rhubarb Custard Bars?

Store them in an airtight container in the refrigerator for up to 4 days. Bring to room temperature before serving for best flavor.

Can I Make These Bars Ahead of Time?

Absolutely! Prepare them a day ahead and refrigerate. The flavors develop nicely overnight.

Can I Substitute the Butter?

You can substitute with margarine or a vegan butter alternative, but the texture and flavor may vary slightly.

What Other Toppings Work Well?

Powdered sugar is classic, but a dollop of whipped cream or a drizzle of vanilla glaze also pairs beautifully.

How to Store Rhubarb Custard Bars

Once cooled, place bars in an airtight container and refrigerate. They will stay fresh for up to 4 days. For best taste and texture, allow them to come to room temperature or warm slightly before serving.

How to Freeze Rhubarb Custard Bars

Wrap individual bars tightly in plastic wrap and then place them in a freezer-safe container or bag. Freeze for up to 2 months. Thaw overnight in the refrigerator before enjoying.

Ingredients

• 1 cup all-purpose flour
• 1/4 cup powdered sugar
• 1/4 teaspoon salt
• 1/2 cup cold butter, cubed
• 1 cup chopped fresh rhubarb
• 2 large eggs
• 1 cup sugar
• 2 tablespoons all-purpose flour
• 1 teaspoon vanilla extract
• Powdered sugar, for dusting

How to Make Rhubarb Custard Bars