Baking Tips & Tricks Decoration How to Create Pinwheel Decorations Back to Decoration Decoration How to Create Pinwheel Decorations Relive your summer childhood memories at the beach by baking our fun Sandcastle Cake. The pinwheel decorations are not a tricky as you would think to create, especially when you follow our simple guide below. So what are you waiting for? Give it a go! Method Roll out x2 small (50g) balls of coloured flower paste icing. Roll out the yellow icing into a 4mm thick square. Split the pink icing and roll half of it into a 2mm thick square. Slice the pink square into thin strips. Space the pink strips on the yellow icing approximately 10mm apart. Secure in place with boiled water. Roll out the remaining pink icing to a similar sized square and fix to the back of the yellow icing with water. Gently roll over the top of the icing and trim into a 3 inch square. Cut diagonal lines towards the centre of the square. Fold over each corner securing in place in the centre with edible glue or royal icing. Stick a small ball of icing in the centre to hold the icing in place. Use edible glue or royal icing to secure a flattened straw to the back of the pinwheel. Leave to dry.