Kumquat Coffee DTLA is a small Korean-style cafe selling coffee, matcha drinks, and baked goods inside the Jonathan Club in downtown Los Angeles. Its signature drink, the Cloudy, layers peanut cream foam over coffee, and it also serves drip coffee and matcha tonic. Beans from several roasters are available to choose from, along with coffee equipment, capsules, and drip bags. In the morning the line can grow to more than ten people.