News Starbucks, oatmilk have a meet-cute in a coffee shop: Coffee giant now serving this plant-based alternative March 12, 2019 Zlati Meyer, USA TODAY Comments Off on Starbucks, oatmilk have a meet-cute in a coffee shop: Coffee giant now serving this plant-based alternative Starbucks now serves oatmilk at a few of its locations in Seattle, New York, San Francisco and Chicago. The chain has offered it in Europe since 2018.