LOS ANGELES — Frances Kuyper, whose passion for cake decorating earned her the nickname the “Cake Lady” and prompted her to open the world’s first cake museum, died July 15 in Los Angeles after a lengthy illness. She was 92.

For the last dozen years Kuyper had lived at a retirement home in the Boyle Heights neighborhood of Los Angeles and maintained a mini-cake museum in its basement.

She opened her first cake museum in a house in Pasadena, Calif., in 1994. It displayed about 150 cakes — some up to 65 years old and hardened from age.

An upstairs room at the museum contained a cake-decorating reference library with more than 1,000 books and about 100 videos. In cake circles, Kuyper was known for her pioneering use of the airbrush for decorating.