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Rhubarb bars sit stacked on each other on parchment paper on a light gray surface.
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Rhubarb Crumble Bars

These Rhubarb Crumble Bars are the perfect balance of sweet and tangy, featuring a buttery shortbread oat crust, vibrant rhubarb filling, and a golden, crumbly topping for a perfect addition to any spring spread or as a lunchbox filler.
Course Dessert
Keyword bars, spring baking
Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes
Servings 12 bars
Calories 278kcal

Ingredients

Bars

  • 200 grams / 1 ¼ cups plain flour
  • 45 grams / ½ cup rolled oats
  • 50 grams / ½ cup confectioner’s/icing sugar
  • 135 grams / 4.76 ounces butter chilled and cubed

Filling

  • 600 grams / 1.3 pounds rhubarb sliced into bite size pieces
  • 100 grams / ½ cup superfine/caster sugar

Instructions

Base

  • Preheat the oven to 180ºC/350F. and line a square baking tin with greaseproof paper.
  • Place the sliced rhubarb and sugar into a bowl and stir to combine.
  • Place the flour, rolled oats and confectioner’s sugar in a bowl and stir to combine. Make a well in the center and toss in the butter.
  • Cut the butter into the flour, until the mixture resembles breadcrumbs.
  • Pour two thirds of the crumb mixture into your tin and press to flatten down evenly.
  • Bake for approximately 10 minutes or until lightly golden on top. Remove and set aside to cool.

Filling

  • Toss the rhubarb onto the base and even out, ensuring it is completely covered.
  • Press the remaining crumb mixture together to form large crumbs and sprinkle over the rhubarb.
  • Bake for approximately 35 minutes or until lightly golden on top.
  • Remove and allow to cool completely.
  • Remove from the tin and slice evenly.
  • Serve.

Notes

  • Rhubarb: Five medium fresh rhubarb stems will suffice to give you the amount you need here.
  • Square tin: A 18×18 cm or 7×7 inch square baking tin works well here, though a rectangle tin would also work well.
Recipe by Roamingtaste

Nutrition

Calories: 278kcal