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Baking dish of Rhubarb Custard Bars next to one slice on white round plate.
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3.17 from 77 votes

Rhubarb Custard Bars

Rhubarb Custard Bars are so sweet and satisfying! Made with a shortbread crust and a tangy custard filling, these bars will make the best spring dessert!
Course: Dessert, Snack
Keyword: rhubarb custard bars
Prep Time: 30 minutes
Cook Time: 1 hour
Servings: 12 bars
Author: Heather



Rhubarb Custard


  • Preheat the oven to 350° and grease a 9x13 baking dish.
  • Whisk together flour and powdered sugar.
  • Cut in the butter with a pastry blender until it resembles course crumbs.
  • Stir in the 2 cold tablespoons water until a dough forms.
  • Pat the dough evenly into the greased baking dish.
  • Bake the crust for 15 minutes.
  • While the crust bakes, whisk together the eggs, sugar, flour, and salt until smooth. Stir in the diced rhubarb.
  • When the crust has finished baking, pour the custard over the hot crust.
  • Bake for 45 minutes or until custard has set and is no longer jiggly.
  • Let the bars cool completely before serving.
  • Store bars in fridge.


Calories: 431kcal | Carbohydrates: 65g | Protein: 5g | Fat: 17g | Saturated Fat: 10g | Trans Fat: 1g | Cholesterol: 103mg | Sodium: 258mg | Potassium: 173mg | Fiber: 1g | Sugar: 44g | Vitamin A: 605IU | Vitamin C: 3mg | Calcium: 53mg | Iron: 2mg
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