Iced brown sugar oatmilk shaken espresso coffee tastes exactly like brown sugar oatmeal! This copycat recipe tastes just like the Starbucks original, but so easy to do at home!
Place brown sugar and water into a medium sized saucepan over medium-high heat. Bring to a boil and let it boil for 5 minutes to reduce to a syrup. Remove from heat and set aside.