Sergio is the master ice cream maker of the "Gelateria Dondoli" (also known as Gelateria di Piazza) located in the central Piazza della Cisterna in San Gimignano, known all over the world and visited by a large number of celebrities.
His ice cream parlour is mentioned in the most important world guides and is continuously visited by national and international televisions.
Due to his experience and inclination to experiment he has created original and unusual flavours. By now his early creations have become famous: Crema di Santa Fina® (cream with saffron and pine nuts), Champelmo® (pink grapefruit and sparkling wine), Dolceamaro® (cream with aromatic herbs) and Vernaccia Sorbet enhance his already highly extensive menu.

All his ice creams are the result of highly selected, top quality ingredients, particularly typical regional products like DOP Saffron with protected designation of origin from San Gimignano and Vinsanto; also worth mentioning are the "Tonda Gentile" Hazelnut from the Langhe region and the Bronte Pistachio. Sergio is also the only one to offer ice cream with Amedei chocolate, awarded the Oscar in London for being the best chocolate in the world for 5 years running (from 2005 to 2009)

Sergio takes part in many events in the sector and is also a member of "Gelato World Championship" as commissioner.
In the past he he took part in "Identità Golose (Tempting Identities)", an important event in the gastronomic world, held in Milan between February 1st and 4th 2009 as a member of the "Creatività Gelate (Frozen Creativities)" group. The group presented some ice cream gastronomic creations, the last frontier of "frozen" taste.

He also tries to spread his precious know-how holding gelato making courses all over the world.
Sergio's creations continue to surprise us: his great inventions include very innovative and successful combinations of flavours in the world of ice cream making, like the sorbets flavoured with aromatic herbs such as Rosemary Baby® (Raspberry and Rosemary), Venere Nera® (Blackberries and Lavender), Curva Fiesole® (ricotta and bilberries), Sangue di Bue® (spicy chocolate and sour cherries), Michelle® (saffron cantuccini, Avola almonds, honey and bitter orange peel), Biske Rata® (white chocolate, pumpkin seed oil, cookies), Crema de' Pazzi® (bitter orange peel, Grand Marnier, dark chocolate and almonds).