He can already take you to the Jewish deli which has plenty of mayo.
Mayonnaise made with lemon juice is kosher in all contexts; mayonnaise made with vinegar can be qitniot (acceptable to have in your pantry year-round except for Passover week), probably because of the fermentation process that produces it. The only way mayonnaise could be non-kosher is if it was made with rendered animal fat instead of oil.
I can’t take my Jewish friend to the mayonnaise festival?
He can already take you to the Jewish deli which has plenty of mayo.
Mayonnaise made with lemon juice is kosher in all contexts; mayonnaise made with vinegar can be qitniot (acceptable to have in your pantry year-round except for Passover week), probably because of the fermentation process that produces it. The only way mayonnaise could be non-kosher is if it was made with rendered animal fat instead of oil.
(I’m not Jewish, just Jew-adjacent)