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Best Homemade Rhubarb Custard Bars

These rhubarb custard bars are a classic baked dessert made with a buttery crust, fresh rhubarb, and smooth vanilla custard. They are sweet, tangy, creamy, and perfect for spring and summer baking.
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Prep Time 20 minutes
Cook Time 40 minutes
Servings: 9
Course: Dessert
Cuisine: American
Ingredients Method Notes

Ingredients
  

  • 1 1/4 cup all-purpose flour
  • 1/2 cup unsalted butter softened
  • 1 1/4 cup granulated sugar
  • 1/4 teaspoon salt
  • 2 cups fresh rhubarb chopped
  • 2 large eggs
  • 1/2 cup heavy cream
  • 1 teaspoon vanilla extract

Method
 

  1. Preheat oven to 350°F and prepare baking pan with parchment paper or grease lightly.
  2. Mix flour, sugar, salt, and butter until crumbly texture forms.
  3. Press crust evenly into pan and bake for 10 to 12 minutes.
  4. Spread chopped rhubarb evenly over warm crust.
  5. Whisk sugar, eggs, cream, flour, and vanilla until smooth.
  6. Pour custard evenly over rhubarb layer.
  7. Bake for 35 to 40 minutes until set and lightly golden.
  8. Cool completely, then chill for at least 2 hours before slicing.

Notes

  • Chill before cutting for clean slices
  • Frozen rhubarb must be thawed and drained before use
  • Do not overbake to keep custard soft and creamy