Remember 10 years ago when everyone, and we mean EVERYONE was on a Rainbow anything craze?! Well, we're giving a nod to our infamous Rainbow Cupcake video but we've made it even better. A new and improved sponge and a clever way of incorporating all of those colours into the icing. Grab a pack of our wonderful Colour Mill x Cupcake Jemma food colour kits just here https://cupcakejemma.com/collections/cake-tools/products/colour-mill-x-cupcake-jemma-food-colouringBake with us and share your photo's and reels with us on instagram @cupcakejemma #cupcakejemma SPONGE240g Self Raising Flour (this is the correct amount, not what I say in the video )18 tsp Bicarb34 tsp Sea Salt200g Caster Sugar 110g Vegetable Oil 145g Milk2 Eggs1 tsp VanillaRainbow Food ColoursBUTTERCREAM285g Soft Butter14 tsp Sea Salt450g Icing Sugar12 tsp Vanilla1.5 to 2 tbsp Milk Rainbow Food ColoursMakes 12 CupcakesButtercream Masterclass: https://www.youtube.com/watch?v=O4qazwRvO6E&t=11sJOIN THE BAKE CLUB FOR FULL DOWNLOADS: http://patreon.com/cupcakejemmaBAKE AT HOME KITS & MERCH: http://cupcakejemma.comCAKES & COOKIES: http://www.crumbsanddoilies.co.uk INSTAGRAM: @cupcakejemma CAKESTAGRAM: @crumbsanddoilies