From 1886 onward, she published her own magazine, The Table, which included weekly recipes and at times articles written by Marshall on various topics, both serious and frivolous.

Although she was one of the most celebrated cooks of her time and one of the foremost cookery writers of the Victorian age, Marshall rapidly faded into obscurity after her death and was largely forgotten.

[5][9] According to a later article in the Pall Mall Gazette, she had "made a thorough study of cookery since she was a child, and has practiced at Paris and with Vienna's celebrated chefs".

[5] In the preface to her first book, Marshall wrote that she had received "practical training and lessons, through several years, from leading English and Continental authorities".

[9] This seems unlikely, coming from a poor background in the East End of London, and the 1878 birth certificate for her daughter Ethel describes her as a domestic servant.

She is probably the eighteen year-old, born in Walthamstow, working as a kitchen maid in Ayot St Lawrence, Herts., in the 1871 census.

[1] The couple also operated a business involving the creation and retail of cooking equipment,[3][5] an agency that supplied domestic staff, as well as a food shop that sold flavorings, spices and syrups.

[10] From 1886 onwards, Marshall and her husband published the magazine The Table, a weekly paper on "Cookery, Gastronomy [and] food amusements".

According to the historian John Deith, these articles were written in a "chatty, witty and ironic, Jane Austenesque style".

[9] She also published articles in support of improving the working conditions of kitchen staff in aristocratic homes, which she wrote "received less respect than carriage horses".

Wishing to reach a wider audience than she had with The Book of Ices, Marshall decided to embark on a promotional tour across England which she dubbed A Pretty Luncheon.

[9] In addition to promoting the upcoming book, the tour also served to bring attention to her cookery school and to her various businesses.

[6] A Pretty Luncheon began in August 1888, with the shows held in Birmingham, Manchester, Leeds, Newcastle and Glasgow.

On 15 and 22 October, Marshall held two successive shows at the Willis's Rooms in London which received unanimous and widespread critical acclaim.

Well-planned, well-written and practically arranged,[9] the book was an enormous success, selling over 60,000 copies and being published in fifteen editions.

Her lecture received a positive review in the Philadelphia Bulletin but she did not achieve the same level of acclaim in America as she had in England.

[9] Marshall was cremated at the Golders Green Crematorium and her ashes were interred at the Paines Lane Cemetery in Pinner.

Before Marshall's writings and innovations, ice cream was often sold frozen to metal rods which had to be returned after all had been licked off[16] and was mainly enjoyed by just the upper classes.

[5] The cookery writer Elizabeth David referred to her as the "famous Mrs Marshall" in the posthumously published Harvest of the Cold Months (1994) and the author Robin Weir declared her to have been "the greatest Victorian ice cream maker" in a 1998 biographical study.

[5] Weir assessed Marshall in 2015 as a "unique one-woman industry" whose achievements were "arguably unequalled" and who "deserves much more credit than she has been given by history".

[6] Since the late 20th century, Marshall's books have once more been reprinted and ice cream freezers based on her original designs are once again in commercial use.