-
Place the single
cream in a saucepan and gently heat until it reaches
boiling point. Remove from the heat.
-
Beat the egg
yolks and sugar in a bowl over simmering water until
the mixture thickens.
-
Whisk in the hot
cream and vanilla essence and continue whisking for
4 minutes, stirring all the time, until the custard
thickens and coats the back of a spoon.
-
Cool by standing
the bowl in cold water, stirring to prevent a skin
from forming. Pour the mixture into a rigid freezer
proof container. Cover and freeze for 1 hour.
-
Break up the ice
crystals with a fork and whisk until smooth. Return
to the freezer for 45 minutes and whisk again.
-
Freeze until
firm. Remove from the freezer 10 minutes before
serving.