Pastry Chef Kimberly Junior of the JW Marriott Chicago will offer colorful confections for Facebook fans, Twitter followers and guests from 10 a.m. to 4 p.m. on March 20, the first day of spring. Limit one per guest with proof of Facebook or Twitter subscription. Flavors include candied violet with white chocolate, chocolate mint with blood orange marmalade, vodka-infused lemon verbena drop and organic candied rhubarb with strawberry gelee.