It’s a piece of cake, literally, if you stop by the Main Library at Eighth and Vine streets downtown for a slice of Mardi Gras on Saturday from 1-4 p.m. Members of The Greater Cincinnati Retail Bakers Association will construct, ice, decorate and serve to the public Ohio’s largest King Cake, amongst other festive activities. That includes two cooking demos, music by the Faux Frenchmen, the crowning of the Mardi Gras King and Queen and displays of the library’s own cookbook collection. Schedule: 1 p.m. cake construction begins and Mardi Gras king and queen are crowned; 1-2 p.m. Faux Frenchmen perform; 2 p.m. Chef Stefan Skirtz of S&J Cafe (at the library and Findlay Market) demonstrates preparation of bananas foster and Chef Jon V. Diebold of Washington Platform Restaurant shows how he prepares Cajun seafood; 3 p.m. Faux Frenchmen return and King Cake samples served. Free. 1-4 p.m. Saturday, Feb. 2. Cincinnati Public Library, 800 Vine St., Downtown. 513-369-6900, cincinnatilibrary.org.