Mix the coffee and pumpkin spice syrup. Add the freshly-brewed hot espresso, pumpkin purée, maple syrup, vanilla extract, pumpkin pie spice, and salt to a large mug. Briefly stir to combine until the mixture is smooth.

Heat the milk. Heat and froth the milk until it is very hot (but not boiling) using a milk frother or an alternative frothing method. (Or you can skip the frothing step altogether.) Immediately pour the hot milk into the coffee mixture.

Serve. Serve immediately, topped with whipped cream and/or a pinch of pumpkin pie spice if desired, and enjoy!