Go Back

Rhubarb Custard Bars: Tangy-Sweet Bliss in Every Buttery Bite

Hey loves! Ever dreamt of bottling up springtime and serving it on a buttery crust? That’s exactly what these Rhubarb Custard Bars are—a golden shortbread base, creamy custard laced with tangy rhubarb, and a sugary top that bakes into pure magic. They’re soft, bright, and just the right sweet-tart combo. Trust me, if you spot rhubarb at the market, this is your move!
Servings 12
Prep Time 20 minutes
Cook Time 45 minutes
Total Time 1 hour 5 minutes

Ingredients

For the Crust

  • 1 cup (2 sticks) unsalted butter, cold and cubed
  • 2 cups all-purpose flour
  • 1/4 cup granulated sugar
  • Pinch of salt

For the Filling

  • 4 large eggs
  • 2 cups granulated sugar
  • 1/2 cup all-purpose flour
  • 1/2 tsp salt
  • 1/2 tsp vanilla extract
  • 2 cups chopped fresh rhubarb (1/2-inch pieces)

For the Top

  • Powdered sugar, for dusting

Instructions

  • Preheat your oven to 350°F. Mix flour, sugar, and salt in a bowl. Add cold butter cubes and blend with your fingertips until it looks like sandy crumbs. Press into a greased 9x13-inch pan and bake for 15 minutes until golden.
  • While the crust bakes, whisk eggs, sugar, flour, salt, and vanilla until smooth. Fold in chopped rhubarb gently—don’t stress if it looks rustic!
  • Pour the filling over the warm crust. Bake for 40-45 minutes until the top is golden and the center is just set (a tiny jiggle is fine—it firms up later).
  • Cool the bars completely in the pan. Chill in the fridge for 1-2 hours for clean slices. Dust with powdered sugar right before serving—extra vibes!

Notes

For an extra glossy finish, brush the top with apricot jam before dusting powdered sugar—it’s a pro move!
Calories: 280kcal
Course: Desserts
Cuisine: American
Keyword: custard bars, easy baking, rhubarb dessert, spring recipes, tangy sweets