Galaxy Birthday Blondie Traybake

Tuesday 4 September 2018

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We have entered the month of September bringing forth my birthday, and luckily for you, a whole load of sweet treats.

I always use the excuse that it's my birthday so an overconsumption of sugars is only fair. I say an excuse when honestly, I never say no to anything sweet.

First up are these melt-in-the-mouth, covered in glitter, galaxy blondies. And when I say melt-in-the-mouth, I mean it! I'm always used to chewy, rich textured brownies, so I thought I'd experiment a little and I'm super happy with the result, and you will be too. These blondies are light, moist and very delicious. We also have a hidden ingredient to give a little crunch, pieces of Birthday Party Oreos, because there isn't a better time. They also smell absolutely divine!

vegan galaxy birthday blondie traybake

Can we just take a moment to appreciate the amount of colour (and glitter) on this bake? An Aycan bake wouldn't be an Aycan bake without colour and glitter, especially those pastel tones. This is an honest place, so I've got to admit a little something, the galaxy-inspired colouring was a slight mistake... but a very good one. I decided to not be so particular with my bakes, (I'm trying to enjoy my time baking, rather than letting it be a chore), so the only plan I had was to spilt my buttercream into two colours, and scoop them into two piping bags. For this "galaxy look," all I did was pipe the buttercream in alternative colours diagonally across the blondies. I then took an angled spatula and smoothed the buttercream one way, and then the opposite way. There is no skill needed, just a very excited right (or left) hand.

This recipe is of course vegan, but you can swap the dairy-free milk, butter, and chocolate for something that suits your dietary needs. You can also swap the vanilla buttercream for another flavour. Any flavouring will do in this recipe.

If you watched the first episode of Great British Bake Off, (if you've not, you definitely should), then you will know that this week is cake week, which is a perfect excuse for you to create this tasty traybake in preparation for tonights show. It's only fair to eat while watching Bake Off, otherwise you'll feel hungry and sad you can't share the tasting. So in the words of Sandi and Noel, ready, steady, bake!

vegan galaxy birthday blondie traybake

.@helloaycan is sharing her recipe for galaxy birthday blondies!


This recipe makes 25 bitesized pieces.


  • 200g dairy-free white chocolate
  • 1 1/3 cup / 170g self-raising flour
  • 1/2 cup / 100g sugar (I used half caster + light brown sugar)
  • Pinch of salt
  • 4 tbsp/ 60ml light flavourless oil
  • 1 tsp vanilla extracts
  • 1 cup / 260ml dairy-free milk
  • 88g of Birthday Party Oreos - about 8 biscuits
  • 2 tbsp / 25g dairy-free butter
  • 1/3 cup / 63g vegetable shortening
  • 1 1/2 cups / 200g icing sugar
  • 1 tsp vanilla extracts
  • 1-3 tsp dairy-free milk
  • Food colouring gel
  • Sprinkles (optional)
  • Glitter (optional)


  1. Pre-heat the oven to 180 degrees C / 160 degrees C (fan) / 350F / gas mark 5. Line a baking tin with parchments paper. I used a 20cm by 20cm tin.
  2. Melt 150g of the white chocolate in a saucepan over a medium heat. Alternatively, place the chocolate in a bowl and microwave in 20-second blasts, stirring well each time. Leave the melted mixture to cool at room temperature.
  3. Sift the self-raising flour, and sugar into a bowl. Add a pinch of salt.
  4. Add the oil, vanilla, and dairy-free milk into the dry ingredients, along with the melted chocolate and mix well.
  5. Chop the remaining chocolate, and break the Oreos into small pieces and fold into the mixture.
  6. Pour the blondie mixture into your lined tin, and bake for 25-30 minutes. It should feel soft, but your knife should come out clean when tested. Leave the blondies to cool, while you prepare your buttercream.
  7. Using an electronic whisk, whisk together the dairy-free butter and vegetable shortenings until they're soft and light. Add the vanilla extract and mix.
  8. Add in 1 cup of icing sugar at a time until fully combined. Add a little milk if needed. Split into two bowls and add your food colouring gels. Scoop into piping bags and decorate. Finish with sprinkles and glitter, and cut up into generous pieces.
vegan galaxy birthday blondie traybake

I love a good traybake, and this is my new fave! Let me know in the comments below if you prefer chewy or soft blondies/brownies, and if you're watching this years GBBO. I have another birthday recipe coming next week, so make sure you come back for that... plus all the other great content inbetween!