Sponge Cake Roll with Lemon Buttercream

This sponge cake roll is very versatile in the filling options. This recipe includes an easy lemon buttercream recipe made with raw pasteurized egg yolks. To make a lemon buttercream prepared in a double boiler with fresh-cooked eggs, “Lemon or Liliko‘i Buttercream.” The buttercream must chill for two to three hours. Plan to make it before starting work on the cake or prepare it a day ahead of time. As another option in place of the buttercream, spread on