Historical clue formulations

• Chef quoted in this puzzle's starred clues — 2021-07-18
• Subject of the 1989 musical monologue "Bon Appétit!" — 2008-10-24
• 1960's-70's PBS star — 2005-08-14
• Speaker of the quote — 2001-10-14
• Renowned chef — 1995-10-23