Recipe for the oliebollen here.
In Israel, New year is celebrated in September as we keep the Jewish calender and not the Gregorian. Young people nowadays celebrate the Christian calendar New Years day (Dec 31) in discos etc, but it's more of a novelty and not a national holiday (neither is Christmas). Old years night is called Sylvester in Israel.
In fact Sylvester was not a reason to celebrate at all.
The Israeli term for New Year’s night celebrations, “Sylvester,” was the name of the “Saint” and Roman Pope who reigned during the Council of Nicaea (325 C.E.). The year before the Council of Nicaea convened, Sylvester convinced Constantine to prohibit Jews from living in Jerusalem. At the Council of Nicaea, Sylvester arranged for the passage of a host of viciously anti-Semitic legislation. All Catholic “Saints” are awarded a day on which Christians celebrate and pay tribute to that Saint’s memory. December 31 is Saint Sylvester Day - hence celebrations on the night of December 31 are dedicated to Sylvester’s memory.Read more:
From A history on new years.