Where's the chocolate?
12South already brings it. It's a medium roast with notes of red apple, chocolate, and hazelnut, and that chocolate note gives the peppermint something to play against, so you can leave out the mocha sauce.
How do you make whipped cream in a jar?
Pour the heavy cream and peppermint syrup into any jar with a tight lid, seal it, and shake hard. In 30 to 60 seconds it goes from sloshing to quiet, which is your sign it has thickened. Stop there. Keep shaking and it heads toward butter.
Why spoon the cream on gently?
Pouring or dropping it in pushes the cream under the coffee and it disappears. Set it on the surface with a spoon and it floats, then melts into the cup a little at a time, which is where the meltaway comes from.