The spritz ratio

3-2-1, in a real glass

Three parts prosecco, two parts bitter orange aperitivo, one part soda. In a single drink that is 90 ml, 60 ml, and 30 ml. In ounces, about 3, 2, and 1. Ice first or ice last both show up in bars. Easy Spritz builds over a full glass of ice, then stirs once.

The soda is not a filler you add if you remember. It keeps the bitter from sitting on the wine like syrup. Skip it and the drink gets heavy. Double it and the drink gets watery. Thirty millilitres is the measured splash.

When 3-2-1 is the wrong rule

Hugo is not 3-2-1. Elderflower cordial at 60 ml is too sweet for most people. The house Hugo is 60 ml prosecco, 30 ml cordial, 10 ml soda. The tall Hugo uses even less cordial and more wine.

Limoncello at 60 ml is dessert. Use 30 ml. Red bitter at 60 ml is harsh for a lot of drinkers. Start at 45 ml. Still wine shows sugar more than prosecco, so cut the scented pour a little whenever the base is not sparkling.

A pitcher

Multiply the single glass, keep the jug cold, and add soda when you pour. That is the whole batching method. The crowd recipes do the arithmetic for Hugo, bitter orange, and limoncello.