Brew your espresso shots or your extra-strong coffee. If you are using a standard drip machine, use a dark roast and double the grounds for a richer flavor. Pour the hot coffee into your favorite large mug and immediately stir in the caramel sauce and vanilla syrup. Stirring while the coffee is piping hot ensures the caramel dissolves completely into a smooth, golden base.

Pour your milk into a small saucepan over medium-low heat. Whisk constantly as it warms to prevent scorching. Once the milk is steaming and small bubbles form around the edges, use a handheld milk frother to create a thick, creamy foam. If you do not have a frother, you can pour the warm milk into a glass jar, secure the lid tightly, and shake vigorously for 30 seconds.

Slowly pour the steamed milk into your mug with the caramel coffee mixture. Hold back the foam with a spoon initially to let the liquid milk incorporate first. Once the mug is nearly full, spoon the remaining fluffy foam over the top. The layers should blend slightly, creating a beautiful gradient of coffee and cream.

Top your creation with a generous swirl of whipped cream. Drizzle extra caramel sauce in a cross-hatch pattern over the cream and sprinkle a few toffee bits or a tiny pinch of sea salt on top. Serve immediately while the drink is hot and the foam is at its peak fluffiness.