White Chocolate

As with my carob chocolate post i am not a white chocolate fan but am interested in its history. Apparently it was first made by the Nestle Co in 1930. What i am interested in is why, what was the motivation, was it just a way to sell more milk powder or was it to showcase the flavour of the milk. Was the cocoa butter deodorised, was this first bar like the Askinosie bars with good quality milk powder and cocoa butter that had that cocoa aroma to it?