Rainbow biscuits recipe

(83 ratings)

All the colours of the rainbow, these bright and cheery rainbow biscuits are easy to make at home. All you need to do is whip up a batch of dough, colour and shape into arcs.

Rainbow biscuits
Preparation Time10 mins
Cooking Time12 mins
Total Time22 mins
Cost RangeCheap

These bright and beautiful rainbow biscuits are easy to make and a treat to eat.

This recipe takes our very popular vanilla cookies biscuit dough and transforms it into bright rainbow biscuits. They will go down a storm with kids and anyone who loves a rainbow. Perfect for parties, you can arrange them on a platter, they're also a really cheery addition to kids lunchboxes to give them a bit of boost while they're munching their lunch. This recipe makes 10 biscuits and they keep well for about five days, stored in a airtight container. 





  1. Make up a batch of the vanilla cookie dough.
  2. Separate into 6 balls and colour each one by working a few drops of food gel into the dough. The dough may get a little wet so you can balance it out with a little extra flour.
  3. Wrap the balls in cling film and leave to chill in the fridge for 20 mins.
  4. Roll out each ball of dough to about 2mm thick. Cut strips of dough (one from each colour) and assemble into the shape of a rainbow. We ran ours along the inside of a circle cookie cutter to get the rounded shape. Press down lightly on the joins of the strips to fix them together.
  5. Bake for in the oven at 160°C/320°F/Gas Mark 3, checking after 12 mins. You don't want the cookies to brown and lessen the effect of the colour.

Top tip for making rainbow biscuits

Food gels have less of a flavour then liquid food colourings and don't water down the mixture as much.

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Jessica Dady
Food Editor

Jessica Dady is Food Editor at GoodtoKnow and has over 11 years of experience as a digital editor, specialising in all things food, recipes, and SEO. From the must-buy seasonal food hampers and advent calendars for Christmas to the family-friendly air fryers that’ll make dinner time a breeze, Jessica loves trying and testing various food products to find the best of the best for the busy parents among us. Over the years of working with GoodtoKnow, Jessica has had the privilege of working alongside Future’s Test Kitchen to create exclusive videos - as well as writing, testing, and shooting her own recipes. When she’s not embracing the great outdoors with her family at the weekends, Jessica enjoys baking up a storm in the kitchen with her favourite bakes being chocolate chip cookies, cupcakes, and a tray of gooey chocolate brownies