A wide variety of flavorings such as fruit purée, chocolate or coffee, praline, nuts and spirits or liqueurs, may be added to this basic vanilla bombe mixture.
In a small saucepan, heat the sugar with the water until dissolved, then boil until the syrup reaches the soft ball stage, 239°F/115°C on a sugar thermometer. Meanwhile beat the egg yolks until just mixed. Gradually pour in the hot syrup beating constantly. Beat as fast as possible for 5 minutes, then continue beating at low speed until the mixture is cool and forms a th