Tilt a tall drinking glass on its side with one hand and pour in the chocolate syrup with the other.

Twirl the glass as you pour so the chocolate coats all sides. Use as much chocolate as you desire, there’s no correct measurement here. Place the glass on a saucer as it will overflow, which is part of the whimsy of this drink. Add the milk and top off with the club soda. Use a spoon to stir the drink aggressively so it begins to foam over the top of the glass. Serve with a straw and VHS copy of Mary Poppins.