A little bit of 7-ELEVEN Cafe's Nihonbashi Eitaro's Kuromitsu (black honey) added to café au lait for about 30 yen increases the richness and luxuriousness of the taste!
I actually bought and drank "Nihonbashi Eitaro's Kuromitsu for 7-ELEVEN Cafe" sold at 7-ELEVEN. This brown sugar brown sugar syrup is made from Okinawa Prefecture.