In Aunt Lucy's Kitchen by Cynthia Rylant

[Aladdin] Meet The COBBLE STREET COUSINS - Lily, who wants to be a poet - Tess, who wants to be a Broadway star - Rosie, who wants a little cottage with flowers by the door Right now, though, the cousins are sharing an attic bedroom in their Aunt Lucy?s light blue house on Cobble Street, and happily making plans for the summer. A cookie company seems the perfect way to make a little money, but it turns out to be much more -- an opportunity to meet some very special neighbors!