Name: Rhubarb Custard Bars
Prep time: 20 min
Cook time: 40 min
Total time: 1 h
Cuisine: American
Ingredients: 1 1/2 cups all-purpose flour; 1 cup granulated sugar, divided; 1/2 cup unsalted butter, cold and cut into small pieces; 2 large eggs; 1 cup whole milk; 1 1/2 cups rhubarb, chopped into small pieces; 1 teaspoon vanilla extract

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Rhubarb Custard Bars are a soft, tangy-sweet dessert that combines a buttery homemade crust, a layer of tart rhubarb, and a silky vanilla custard filling. I love how the bright flavor of rhubarb balances the rich custard, creating a dessert that feels both comforting and refreshing. These bars bake up beautifully golden and are perfect for spring gatherings, afternoon tea, or an easy family dessert.

Ingredients

(Tip: You'll find the full list of ingredients and measurements in the recipe card below.)

1 ½ cups all-purpose flour

½ cup granulated sugar (for crust and custard)

½ cup unsalted butter, cold and cut into small pieces

2 large eggs

1 cup whole milk

1 ½ cups rhubarb, chopped into small pieces

½ cup granulated sugar (for rhubarb topping)

1 teaspoon vanilla extract

Directions

I preheat the oven to 350°F (175°C) and line a 9x13-inch baking dish with parchment paper.

I combine the flour and ½ cup sugar in a mixing bowl for the crust.

I cut the cold butter into the flour mixture until coarse crumbs form.

I press the mixture evenly into the prepared baking dish.

I bake the crust for about 15 minutes, or until lightly golden, then allow it to cool slightly.

I toss the chopped rhubarb with ½ cup sugar and spread it evenly over the baked crust.

I whisk together the eggs, milk, vanilla extract, and remaining sugar until smooth and slightly frothy.

I pour the custard mixture evenly over the rhubarb layer.

I bake for 25 to 30 minutes until the custard is set and lightly puffed.

I let the bars cool for about 15 minutes before slicing and serving.

Servings and timing

Servings: 12 bars

Prep Time: 20 minutes

Cooking Time: 40 minutes

Total Time: 60 minutes

Calories: 216 kcal per serving

Variations

I sometimes add a pinch of cinnamon or nutmeg to the custard for a warm spice note. For extra texture, I like sprinkling chopped almonds or pecans over the rhubarb before adding the custard. When I want a sweeter flavor profile, I mix strawberries with the rhubarb to soften its tartness. I can also use a splash of almond extract instead of vanilla for a slightly different aroma.

Storage/Reheating

I store leftover Rhubarb Custard Bars in an airtight container in the refrigerator for up to 4 days. If I need to stack them, I place parchment paper between layers to prevent sticking. For serving, I enjoy them chilled, but I can also warm individual portions in the microwave for about 10 to 15 seconds. Freezing is possible for up to 2 months, though the custard texture may soften slightly after thawing.

FAQs

Can I use frozen rhubarb?

I can use frozen rhubarb, but I thaw and drain it well before adding it to the recipe to prevent excess moisture.

How do I know when the custard is fully baked?

I look for a lightly puffed center and a custard that is set. A toothpick inserted near the center should come out clean.

Can I make these bars ahead of time?

Yes, I often prepare them a day in advance and store them in the refrigerator until ready to serve.

What can I serve with Rhubarb Custard Bars?

I enjoy serving them with whipped cream, vanilla ice cream, or a hot cup of tea or coffee.

Can I use a different fruit instead of rhubarb?

Yes, I can substitute fruits such as strawberries, raspberries, or a combination of berries, although the flavor will be different from the classic version.

Conclusion

I find these Rhubarb Custard Bars to be the perfect balance of sweet, tart, creamy, and buttery flavors. The combination of a crisp crust, fresh rhubarb, and smooth vanilla custard creates a dessert that feels both nostalgic and elegant. Whether I serve them for a special occasion or a simple afternoon treat, they always bring a delightful homemade touch to the table.

📖 Recipe:

Rhubarb Custard Bars

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Author: Cheryl
Total Time: 60 minutes
Yield: 12 bars
Diet: Vegetarian

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Description

These Rhubarb Custard Bars feature a buttery crust topped with tart rhubarb and a smooth vanilla custard filling. They are sweet, tangy, and perfect for spring gatherings or an easy homemade dessert.