Separate the eggs and beat the yolks with the salt and the sugar, until the mixture is thick and creamy. Beat in the cognac, very slowly and put the mixture into a double saucepan. Heat gently, whisking all the time until the advocaat is warm (not hot) and thick. Remove the pan from the heat and stir in the vanilla essence. Pour into a jug.
Serving Size: 12

Advocaat is served in a glass and eaten with a teaspoon. It can also be topped with whipped cream.