This photo postcard likely originated in northern Europe. The presence of a nun at the back of the room and a crucifix on the wall suggest the class may have been offered by a convent or other Catholic organization. The back provides no information.
Cooking class
Tokens of Companionship 
Have you looked at the wallpaper border motif? It looks like a windmill. It looks vaguely familiar. I think that motif was popular at some time. It doesn’t mean it has to have been in Holland but it might. What makes you say northern Europe?
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It was among some postcards from Germany but could have originated elsewhere.
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