Breville Dual Boiler

“Last year in Tokyo, I had an incredible iced oat latte at a small coffee spot called Coffee Swamp, and I've been obsessed with it ever since. I'm hoping someone can help me recreate it. The iced oat latte had a velvety texture and a subtle hint of sesame, almost like there was a drop of sesame oil (although I watched closely, and there wasn't). The barista poured the shot onto cold oat milk (Oatside brand) in an ice-cold glass from the freezer. The settling shot created a visually stunning effect through the oat milk. It was a game-changer! I'm curious if it's the coffee blend or the oat milk that gives it that sesame flavor. Unfortunately, Oatside isn't available in Australia, but I'm open to having it shipped. My setup is Varia VS3 and Breville Dual Boiler. Any insights would be much appreciated!”