Yes, you do chill cake balls before dipping. Chilling cake balls before dipping makes them so much easier to coat. I will form my cake balls, place the tray in the freezer for a few minutes, remove it and just tidy up the balls a little by re-rolling them so they are smooth. I’m terrible at rolling perfect balls, so I use this trick every time. Then, I’ll place the tray back in the freezer for at least 15 minutes or until very firm. This helps coat them very easily.