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The Easiest Christmas Jumper Piped Sheet Cake Instructions

Level up your sheet cake with this super simple Christmas Jumper inspired buttercream piping!


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This piping looks complicated but it really isn't! You just need my sheet cake and buttercream recipes, along with two different piping nozzles. You could choose any festive colour combination and add as many Christmassy sprinkles as you'd like!


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These instructions show you how to pipe this Christmas jumper knitwear style piping to decorate a sheet cake. You will need my sheet cake and buttercream recipe which is available in my eBook 'Easy Vegan Cakes' here; Easy Vegan Cakes - PDF DOWNLOAD | Clemie's Vegan Cakes


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To decorate one sheet cake

 

1x sheet cake - you could make any flavour you fancy. Find my sponge recipes here; Easy Vegan Cakes - PDF DOWNLOAD | Clemie's Vegan Cakes

2x batch of buttercream - if you want to you colour your buttercream, you want to pick a pale flavour, such as vanilla, lemon or white chocolate. Find my buttercream recipes here; Easy Vegan Cakes - PDF DOWNLOAD | Clemie's Vegan Cakes

2x piping bags

1x 4B Wilton nozzle

1x 18 Wilton nozzle

Festive sprinkles - optional

Vegan food colouring - optional

 

You will also need; a palette knife, scissors, two small bowls, two spoons


How to decorate your cake;


  1. While your sheet cake is cooling, make a double batch of buttercream by doubling the quantities and following the instructions in the recipe

  2. If you want to colour your buttercream, split the buttercream into the two small bowls. Decide on your contrasting colours and colour the buttercream by mixing in a small drop of each colour

  3. Once your sheet cake is cool, choose one of the buttercream colours and use the palette knife to spread a thin coat of buttercream over the sheet cake to create your base for piping

  4. Place the nozzles in piping bags and spoon one colour of buttercream into one piping bag and the other colour of buttercream into the second piping bag

  5. Begin using your 4B nozzle by piping large angled overlapping scallops down each of the short sides and the middle of the top of the sheet cake

  6. Pipe the scallops by squeezing out a small blob of buttercream while slightly dragging the piping bag diagonally across

  7. To created the knitted effect, do the scallops in pairs, blobing the next scallop next to the one you just piped and slightly dragging it diagonally back towards the one you already piped

  8. Repeat these pairs of scallops all the way down both sides and the middle of the cake

  9. Fill in the gaps with further knitted style scallops using your smaller 18 nozzle and by piping scalloped chains in both the 4B and 18 nozzles

  10. To pipe the scalloped chains, start at the top of the cake and squeeze out a small blob of buttercream while slightly dragging downwards

  11. When you start the next scallop, slightly overlap it onto the tail of the previous one to create the joined up chain effect

  12. You don't have to completely cover the whole cake in piping, you could leave some gaps and fill them in with lines of festive sprinkles instead


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Tips & Tricks!


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