When you make each batch, keep a small blob of batter back – then, as you dye each future batter, you can make sure the colour strengths match. Add the milk, melted butter, eggs, and extracts (vanilla and almond extract combo, or use vanilla) then mix on medium speed for about 2 minutes or until smooth. Fun for everyone and perfect for any occasion, this easy marbled rainbow layer cake will be the hit of the party!

After mixing 1 recipe of buttercream frosting and making 1 recipe of marshmallow fondant, split the fondant batch to add colors. Transfer the baked rainbow cakes to a wire cooling rack so they may cool completely before you decorate. Roll your fondant out into into a single round large enough to cover the 8-inch cake (16-inches wide, and ¼ inch thick). Turn the turntable in a fluid motion while ensuring you keep the blade at a 45 degree angle against the side of the cake with your other hand. If the buttercream has ‘torn’ in places, dip your palette knife in hot water and use that to smooth over any imperfections.Working quickly, weigh the mixture into another bowl to work out the total weight, then weigh exactly half the mixture back into the mixing bowl. It’s deceptively simple to make too – all you need is basic cake ingredients and a rainbow of food colouring! I love sharing new, fun, creative recipes and great classic recipes just like my Grandma used to make! Gel food coloring is easier to work with when coloring cake batter, icing, and frosting and is also easy to find at the locations mentioned above. It's truly one of the best and easiest ways to make a rainbow cake, whether you are doing a single layer cake or even more layers than I used here!

To make the icing, very briefly beat the vanilla and soft cheese or mascarpone with an electric whisk until smooth. Angela is an at home chef that developed a passion for all things cooking and baking at a young age in her Grandma's kitchen. Bake centered on your oven's middle rack for 30-35 minutes or until an inserted toothpick, knife, or cake tester comes out clean. No matter where you take this cake, it is always a crowd pleasing favorite with it's bright colors and fantastic flavors! It can be found in the party and cake supplies sections at WalMart, Hobby Lobby, or Michael's crafts.A palette knife, which has a long, rounded and flexible blade, makes icing big cakes much easier, as the blade is long enough to scrape the whole side at once. Generally I've creamed the sugar and butter, then added the eggs, then the milk and finally add the mixture to the dry.

You will need 6 x 20cm/8in loose bottom sandwich cake tins (approximately 4cm/1½in deep), a 20cm/8in and a 30cm/12in cake board, 2 non-slip cake mats trimmed to about 18cm/7in and 25cm/10in diameter, a turntable, a cake side scraper and 6 medium-sized piping bags. Wash the tins and bowls thoroughly, and start again from step 1 – this time using another two colours. My nine year old was so excited for it I got a huge thank you before the first bite and then she came back for more hugs and gratitude for the cake and all the work I put into it. I also used your buttercream recipe (also doubled) and added lemon extract to it for a bright lemony flavor. From here you can continue to add buttercream to make an even layer of white buttercream in the center of your cake, or fill with a flavored filling of your choice.Sift the icing sugar on top, bring the mixture together at a low speed, then beat at high speed for a few minutes until the mixture is pale and fluffy. Beat the butter and sugar together in a stand mixer or with a handheld electric whisk on a high speed until pale and fluffy. We developed a brand new Madagascan vanilla seed cake recipe to make sure that our Rainbow layer cake would be super moist and have that real authentic buttery vanilla birthday cake taste.