You can make a very easy version with this recipe:
Thai Iced Tea
2 Tbsp. loose Thai tea
1/4 c. water
2 Tbsp. sugar
Ice cubes or crushed ice
1/4 c. half and half
Bring tea and water to a boil in a saucepan and simmer over low heat for 3 to 5 minutes, depending on your taste. Strain the tea into another container and stir in the sugar. Pour the tea over ice in a tall glass immediately, or after the tea has cooled to room temperature. Top with the half and half.
For us, I buy bags of Thai Seasoning Mix (Por Kwan product) online and you add it to water and boil. When boiled for about 5 minutes, you strain it, fill you glass with ice, pour the strained tea over it and add coconut cream. For my coconut cream, I use Coconut Cream Powder (Chao Thai Brand), which I also buy online. It is instant and you just add warm water and you get great coconut cream for all your desserts, main dishes and making tea. I have ordered the Thai Ice Tea when dinning out, and they always have brought the coconut cream to the table and added it the glass of iced tea as it was served. This coconut cream powder is wonderful to have on hand.