Welcome to the Cake Decorators Q&A

how can i do smooth finishing with fresh whipped cream on a pastry cake .

Hello chefasha

First, start with a good thick layer of whipping cream covering before attempting to smooth. To remove the excess, gently use same techniques as in smoothing buttercream or ganache. Slightly wetting the palette knife or scraper will prevent the cream from spiking up to give a better finish.

Hope this helps.