Here are a few pointers to make sure your cake doesn’t crack. Make sure to use parchment paper to line your baking sheet. This helps make sure that the cake won’t get stuck in the pan. Do not overbake the cake. When it’s done baking, you immediately want to roll it up so that the cake takes the roll shape while it’s still warm. Be sure to use powdered sugar on your tea towel. Lastly, let it cool completely before adding the filling so that the filling doesn't melt and spill out.