Colour-changing unicorn noodles are a simple but magical kitchen experiment that kids (and I) absolutely love. Using all-natural colouring, these noodles transform from deep purple to bright pink right before your eyes, making them feel like a real-life science experiment you can eat!
The colour change happens when the noodles react to a natural ingredient (lemon juice), creating a fun chemistry experiment. It’s a fun, hands-on way to introduce kids to cooking while also showing them how natural ingredients can create beautiful colours without artificial dyes.
With simple ingredients, you can turn an everyday bowl of noodles into something magical!
Whether you want to call them unicorn noodles, magic noodles, or colour-changing pasta, this is one of those recipes that always gets a “wow” moment at the table…perfect for parties or even a witchy Halloween trick..
Ingredients
Method
- Roughly chop the red cabbage. Use the outer leaves with a deeper colour.
- Add water and cabbage to a pot and bring to the boil. Let it simmer for 5-10 mins bruising the cabbage with a wooden spoon.
- Remove the cabbage and discard (compost).
- Add the noodles to the purple water and turn over until they spread out in the pot and are fully submerged in liquid.
- Turn the heat off and cover the pot for 10-15 minutes until the noodles have absorbed all the liquid.
- Stir the noodles and strain off the excess liquid if there is any.
- Place your noodles in a bowl and before serving roughly squeeze the lemon over the purple noodles and the acidity will change the colour to pink.
Notes
Garden to Plate: A Fun Low-Waste Kitchen Science Recipe
These unicorn noodles are also a great example of a garden-to-plate, low-waste recipe. Instead of throwing away the outer leaves of cabbage, you can transform them into something magical!
The outer cabbage leaves are often tougher and less appealing for salads or stir-fries, but they are perfect for creating a natural colour-changing liquid. When simmered in water, red cabbage releases a deep purple pigment that can be used as a completely natural food dye!!!
The purple cabbage liquid reacts to acidity, which is what allows the noodles to shift colour from purple to pink! It’s a simple way to show kids how ingredients from the garden can be used in unexpected and creative ways.
If you grow cabbage at home, this is a perfect way to make the most of the whole plant..right down to the leaves you might normally compost.
Make a Lasting Impression
These Unicorn Noodles are a great way to get kids interested in cooking! Let their imagination run wild and give them their own slice of lemon to colour change the noodles. Not only for kids….these Unicorn Noodles are also a great way to add theatre to the dinner table if you are hosting family or friends. I love creating meals that stand out from the rest and get people talking. We eat with our eyes and colourful food always sparks so much more joy at the table.
You can also use the absorption method to cook white long-grain rice in the purple liquid as well. Check out my other recipes for Unicorn Rice below.
I would love to see your Unicorn noodle creations, so be sure to tag me on Facebook or Instagram and let me know how you go!
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Wow, it looks amazing. Great stuff.
Thank you!