Most places serve overly sweet thai tea with food coloring. Mama Noi's cart on Soi Post Office makes it the old way - strong black tea, condensed milk, and actual spices. 25 THB for the best cup in Pattaya.

She's been there 15 years, same spot every afternoon from 2 PM. Recognizable by the vintage brass tea dispensers and the queue of Thai regulars. Also does excellent traditional coffee if you prefer. No English but pointing works fine.