Baron VonBon-Bon is a character in a murder mystery play. His name is a parody of a bon-bon.
Baron VonBon-Bon was a character in a murder mystery play, where he murdered Miss Sweety Pie and Sherlock Honeycombs investigated the murder.
Gazpacho as Bon-Bon
In the episode The Dinner Theater, Gazpacho played Baron VonBon-Bon in the play for Mung Daal's Catering. The play was ruined by Chowder, who thought that Bon-Bon was actually going to murder Panini (who was playing Miss Sweety Pie).