In a pan melt the butter and add the flourcook stirring constantly for 1 min. Remove from the heat and slowly stir in the milk until smooth. Return to the heat stir until the mixture boils and thickens.
Place in a large bowl cover with cling film allow to cool to just warm. Stir in egg yolks, parsley, basil, chives and dill.
Beat the egg whites in a small bowl until soft peaks form; fold lightly into warm mixture.
Put the dishes on to an oven tray, pour mixture into dishes.
Bake in a moderate oven for about 15 mins. Serve immediately.