In the bottom of a mug (I recommend at least 8 ounces in capacity), add 1 tablespoon of caramel sauce.
Add the espresso directly on top of the caramel, then pour in the hot milk. Spoon the remaining milk foam on top.
Drizzle the remaining 1 tablespoon of caramel over the milk foam. Enjoy promptly!
Notes
*A dedicated milk frothing device is best, but there are other ways to foam milk. Here are 8 other ways. Skim milk and whole milk are regarded as the best milks for lots of bubbles.