Yummy chocolate milk!

When I was working in San Jose some 10 years ago, my colleagues brought me to a place where they sold very yummy chocolate milk.  I can't remember exactly where it is, but the cafe was very crowded with people buying chocolate milk.  I have one, and the taste?  Strong, sweet and very yummy!  I bought a can and from then I love hot chocolate milk.  I can't forget the taste in these 10 years, and I asked my cousin (who studied in San Francisco) the brand name of the chocolate milk (I have a bad memory on names), he didn't know it.  Last time when I went back to Taipei, I saw CitySuper selling "Ghirardelli" chocolate powder, and I recognized the name, but it's very expensive, NT350+, so I thought it should be cheaper in HK.  So when I went back to HK in Dec., (the day I met AC100, and JaneChu, and I forgot to ask Jane, cos it's my first time to meet my AnD friends, I was nervous), I found it in CitySuper, IFC, and it's cheaper, HK$50+, and I bought it.  I can't believe I've waited for 10 years to find it again, but it worths it, althought I know I'm getting fat because of it! 

To my San Francisco friends,

Do you know where is this chocolate milk cafe?  I'd love to go there again if I visit SanFrancisco.