Set the oven to moderately hot (gas 5 or 190°C/375°F). Line a Pyrex bowl or dome-shaped cake tin with baking paper. You can watch our video on how to line a round cake tin if you need help.

Decorate Barbie's top with the coloured fondant icing and the top part of the iced sponge cake to look like an overskirt and top.Please do not throw any incorrect items as we may ask you to return it to us – we will, of course, cover the cost of your postage in these circumstances.

I cooked it at 160C in a fan assisted oven for approximately 50 mins or until a skewer inserted comes out clean. This tin comes with a heat conducting central pole to help cook the cake thoroughly which is great as there is a lot of cake batter. I have cooked half sphere cakes before and the timings can be all off so if not cooked after 50 minutes be patient and keep trying in 5 minute increments to see if fully cooked. If worried about the top burning just cover with tin foil – it will cook eventually! Bake the cakes in 4 8-inch rounds and 1 6-inch round. I only own 2 8-inch rounds so I just bake them after each other. Bake the first set, then after they cool, bake the next. Pipe on those flowers. To make the flower, hold the tip perpendicular to the cake. Press the tip to the cake, then pull up, squeeze and do a circle motion, which will create the small flower. Repeat next to that flower, etc. Add some purple food coloring gel to a bunch of frosting. Then mix until well colored. Add more food coloring as necessary. So, if you’re looking for 6-inch cake tins, 8-inch cake tins, rectangle cake tins or some standard cake baking tins, we’ve got everything you could possibly want to perfect your bakes. What to look for in a cake tinHave the frosting ready to use. Affix the cake to the cardboard with a bit of frosting. Affix this board and cake to the serving platter. Tint three-quarters of the frosting a vivid color and the remaining frosting a paler pastel. Cover the entire rear three-quarters of the cake with the darker frosting, leaving the front 5 inches (the trimmed triangle) bare. Use an icing spatula to apply frosting in an up-and-down motion; this will create soft vertical lines that look like draped fabric. Make sure to grease and flour the pans and it is a good idea to put parchment paper on the bottom as well.