Ice cream did much to popularize ice cream recipes and make its consumption into a fashionable middle-class pursuit. She wrote four books: "Ices Plain and Fancy: The Book of Ices" (1885), "Mrs. A.B. Marshall's Book of Cookery" (1888), "Mrs. A.B. Marshall's Larger Cookery Book of Extra Recipes" (1891) and "Fancy Ices" (1894) and gave public lectures on cooking. She even suggested using liquid nitrogen to make ice cream. Ice cream soda was invented in the 1870s, adding to ice cream's popularity. The invention of this cold treat is attributed to American Robert Green in 1874, although there is no conclusive evidence to
Steve's Ice Cream the Heath Bar candy bar by a friend in the late 1960s and felt it would make an excellent addition to ice cream. When he opened his first store, instead of having pre-mixed flavors like chocolate chip, he had his staff mix freshly made ice cream with candy or other confections based upon customer requests. These candy additions were called "mix-ins", and the custom-blended flavors proved to be highly desired by the customer. Steve sold out of ice cream on his first day, and the store became very popular in a short time. The prices in 1975 were $.35 and