A KEEN HOUSE - One Bangkok is a coffee shop on the third floor of the Parade Building at One Bangkok in Pathum Wan, Bangkok. When ordering an Americano, you can choose the beans, and the Thai beans are on the acidic side; biscotti are also sold. The pistachio butterscotch latte is a three-stage drink meant to be consumed in layers from top to bottom. The matcha latte and hojicha latte are made without added sweetness, drawing their flavor from the tea.