What exactly is in the Iced Brown Sugar Oatmilk Shaken Espresso? According to Starbucks, it's Starbucks Blonde espresso, brown sugar and cinnamon [shaken] together, topped with oat milk and ice. The recipe calls for four pumps of brown sugar syrup, Oatly oat milk, three shots of espresso, and cinnamon powder.A grande retails for a cool $5.95. The drink also comes in at 120 calories, which is actually low compared to some Starbucks drinks.Full disclosure, I was prepared to dismiss this drink, especially after seeing all the hype it was getting on TikTok. But I was immediately won over.Starbucks drinks have a tendency to be overwhelmingly sweet, which I don't always mind, but the shaken espresso wasn't too sweet. It was just a rush of brown sugar and cinnamon, mixed with the creamy texture of oat milk.Once the syrup, coffee, and milk had blended together more, I had a better sense of how the oat milk reacted with the coffee — as an oat milk fan, I enjoyed the taste.I was legitimately sad to be finished with my drink.Instead, I had to drive two towns over to get my brown sugar fix. However, when I was able to secure the drink, I found it tasted different.This second drink wasn't quite as good as I remembered. I couldn't taste any cinnamon, and the brown sugar syrup had less flavor than my first one — potentially because it had fewer pumps, or perhaps because it had been shaken a different way.Overall, it was still tasty, but not in a change my Starbucks order forever way.I think it's reasonable to assume that Starbucks employees are still learning the best way to prepare the drink – it's just a couple of weeks old.However, I enjoyed it both times I ordered it and would easily say the Iced Brown Sugar Oatmilk Shaken Espresso lives up to the hype. I'm probably going to order it again this weekend.