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08/05/2026 Cakes & Bakes

RHUBARB, CARDAMOM & WHITE CHOCOLATE BLONDIES

These blondies have to be one of my favourite sweet treats I have ever made.

I think this is my first sweet Aperitivo Time? I normally lean savoury, but recently my sweet tooth has been needing satisfying more than usual. And I’m not mad about it.

Rhubarb, Cardamom & White Chocolate Blondies - Georgie Mullen

Rhubarb is one of my favourite fruits to use in desserts. Rippling it through something traditionally very sweet, like a white chocolate-speckled blondie, brings a gentle sharpness that balances out the flavours nicely.

Rhubarb, Cardamom & White Chocolate Blondies - Georgie Mullen
Rhubarb, Cardamom & White Chocolate Blondies - Georgie Mullen

As for the Rhubarb Sour, you can find the recipe in my book, What to Cook & When to Cook It. It is available in most retail stores near you/online, you can find where it is stocked here.

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RHUBARB, CARDAMOM & WHITE CHOCOLATE BLONDIES

The blondies are one of my favourite sweet treats I've ever made, enjoy!

Prep Time 10 minutes
Cook Time 30 minutes
Servings 9 servings

Ingredients

  • 9 cardamom pods
  • 115 g unsalted butter melted
  • 190 g soft light brown sugar
  • 1 medium egg
  • 2 tsp vanilla bean paste
  • pinch of salt
  • 145 g plain flour
  • 150 g white chocolate roughly chopped

rhubarb compote

  • 200 g forced rhubarb diced into 2cm chunks
  • 40 g caster sugar

Instructions

  1. Start with making the rhubarb compote. Combine the rhubarb, caster sugar and 2 tbsp of water in a small saucepan. Clamp on the lid and place over a low-medium heat. Cook for 6–8 minutes, stirring occasionally, until the chunks of rhubarb have broken down into a thick compote. Remove from the heat and set aside to cool.
  2. Preheat the oven to 180°c (fan assisted)/390°f/gas 6 and line a brownie tin with parchment paper. My brownie tin is 21cmx21cm, but you’ll be fine with one slightly smaller too.
  3. Bash the cardamom pods to access the seeds. Grind the seeds in a pestle and mortar, into a fine powder. Set aside for use later.
  4. Combine the melted butter, soft light brown sugar, egg, vanilla bean paste and a pinch of salt in a mixing bowl. Sift in the plain flour and ground cardamom and fold gently, until fully combined. Stir through the chopped white chocolate.
  5. Randomly dollop both blondie batter and rhubarb compote into the prepared tin, alternating between them. Use a knife to marble them gently together, then bake for 20-25 minutes, until golden and set on top.
  6. Allow the blondies to cool completely in their tin, before chopping into slices and keeping refrigerated. You can eat them at room temperature when they are slightly gooey, but I prefer them straight from the fridge when they have turned fudgy and chewy. Both options are delicious, but see what you prefer.

If you can’t get enough of rhubarb at the moment like me, you’ll love my breakfast recipe for Poached Rhubarb & Ginger Granola. Or, for more recipe inspiration, head over to my Instagram.

Categories: Cakes & Bakes Tags: May

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Hello! I’m Georgie - food writer, content creator and author of What to Cook & When to Cook It. Here you'll find a collection of simple, seasonal recipes for people who love to eat, and love to prepare food that celebrates the seasons all year round. Read More →

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