There are almost as many ways of making Thai tea as there are Thai restaurants. I love the richness the cardomom, cloves and cinnamon add. You can also skip the sugar and use sweetened condensed milk in place of the half-and-half. No other tea will substitute for Thai tea--you can find Thai tea in Asian markets, or if you are really lucky, in the Asian section of your grocery store. Prep time does not include chill time.