You probable have seen as well all of this great striped cakes and thought about how to achieve this beautiful effect. It looks complicated but is in fact really simple, so I made a step by step tutorial for you.
To get a cake with sharp edge I recommend this tutorial to stack the cake. You can use whatevery cake and whatever filling you like. The filling should not be super soft and thick as you need to turn around the cake later on in the process. To get a striped buttercream cake and still get the sharp edge, frost the cake with one color of buttercream (the one where you have the bigger portion). The buttercream neads to stick out some over the cake board* to be able to scrap some cream off later. Now chill the cake for a few minutes.
To get the striped effect you need a notched trowel*, which you can get in the baking department but is also used for tiling.
Now you create grooves with the trowel. It is important the grooves are deeper as the cake board*, but there needs to be still material sticking out to be able to scrape some buttercream off later to make the cake smooth. The easiest is to scrap right along the cake disc on the bottom* and stick the teeth about half of their size into the buttercream. Move it all along the cake till you have grooves all around. If you don't got the grooves deep enough you don't have to worry, just rework them with the other end of a spoon.
Now fill the second color of buttercream into a piping bag* with a round piping tip and fill up the the grooves all around the cake.
Don't worry if the surface is not smooth, because this comes in the next step.
Now chill the cake again a few minutes bevore you do the last step. You scrape the excess frosting off all around the cake. You can do it exactly like in this description. After you scraped off the excess, changed the cake board on top to a decorative one and turne the cake. Now you can easily lift the cake circle off and get rid of the parchment paper (if you did not forget it like myself in this pictures). Now you should have a striped buttercream cake which you just need to decorate how you like. I used a small star tip* and a few sugar pearls*.
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