Here's what you need:
Toffee Nut syrup
And of course, milk.
Load your cappuccino maker like normal.
In your mug, add 1 Tbsp each cocoa, Toffee Nut syrup, and caramel sauce.
In your milk, add 1 Tbsp Toffee Nut syrup.
Brew your espresso and froth your milk like normal. Add espresso to your mug, mix well.
Add the milk. Top with caramel sauce and sprinkle with sea salt.