I was thinking of a fragrance incorporating the frsh, pungent smell of the tzatziki (yogurt with cucumber, garlic, mint and olive oil). For a yogurt note, the first though went to the geranyl butyrate, but there might be others I am not aware of. Does anyone have suggestions?
You want something creamy like Methyl Laitone, Acetyl Methyl Carbinol, Diacetyl and Sulfurol. As it is Yogurt you will need some Butyric Acid (found in rancid butter, but at very low levels gives a sour milk note).