Place tea bags in a mug of your choosing. Add hot water and let steep for 5 minutes. Remove the tea bags.
While tea is steeping, warm the milk either in a saucepan over low-medium heat or microwave in microwave-safe dish for 15 seconds. Using a handheld frother or whisk, froth the milk for a few second until foamy (usually about 5-10 seconds).
Add vanilla sweetener to the steeped tea and then add frothed milk.