Truly, the ingredient list amounts for this are just a suggestion.
Pour about 1-2 oz of heavy cream into a glass and add as much pumpkin syrup as your heart desires.
Froth! If you use a hand frother, go until soft peaks form - if you froth for too long you may end up with whipped cream (although - is this even a bad thing?). To thin the foam, add a splash of 2% milk.
For a stand alone electric frother, just throw in the ingredients and be sure to use the cold setting.
For my non-dairy ladies (and lads) you can use oat or almond milk but it has to be a “barista” blend! Expect a thinner foam with dairy substitutes (the barista blend will foam up so much better than the regular kind).