Maren Caroline Henriette Schønberg Erken was a popular Norwegian cookbook writer and teacher in home economics. One Norwegian newspaper included her in their list of the most important 100 Norwegians in the last 200 years.
Her first cookbook which was co-authored by Caroline Steen Kogebog for skole og hjem was published in 1895. Steen was a physician from Denmark who was prevented from practicing medicine in her home country because of her gender. Their book went through sixteen editions. Steen went on to be a professor of domestic science in Denmark.
Erkens book Stor Kokebok (English: Big Cookbook) was first published in 1914. The book had 700 pages and came in 18 new editions until 1951. In total it sold more than 200,000 copies. The same year she published a small booklet called Billig mat (Cheap food). An abridged version of the large bookbook named Liten kokebok (English: Small cookbook) which was first published in 1931 sold 100,000 copies.
Erken provided recipes for physician Carl Schiøtz’s 1939 book about healthy diet Trygg kost for norske hjem which included information about the Oslo breakfast