My Head Almost Exploded Making This Rainbow Cake

I made an insane Rainbow Layer Cake.That's 6 colourful layers covered in delicious butter cream icing, following along to the recipe and video from the Youtube Superstar Cupcake Jemma. She made it easy for me. Just follow along to her video and give her a subscribe!    • How to make the Best Ever Rainbow Cake | C...   Patreon Support:   / antichef   Merch: https://teespring.com/stores/anti-che... Mailing List: https://www.anti-chef.com Follow Me Here: Instagram:   / antichefjamie   Facebook:   / antichefjamie   What I Use (Amazon Store): https://www.amazon.com/shop/antichefj... Music: https://www.epidemicsound.com ____________________________________________________________________ Recipe (copied and pasted from Jemma) For the cake - 9 tbsp whole milk 1 ½ tsp vanilla extract Various colour pastes (red, orange, yellow, green, blue & purple) 750g soft unsalted butter 750g caster sugar 9 large free-range eggs 750g sifted self-raising flour Butter & flour for preparing the cake tins For the buttercream - 400g soft unsalted butter 900g sifted icing sugar 5-6 tbs whole milk ½ tsp vanilla extract