Combine the Amer Picon and grenadine with ice in an Irish Coffee mug and stir briefly.
2.
Add the club soda almost to the top, leaving a little room in the glass.
3.
Float the brandy on top.
4.
Garnish with a lemon peel.
Notes
Amer Picon is unavailable in the United States, so you can approximate it by combining 2 parts Ramazzotti amaro, 2 parts dry curaçao, and 1 part gentian liqueur.