Former Post-Dispatch reporter and food scribe Ellen Sweets is setting the cookbook world on fire with her cooking memoir,”Stirring It Up With Molly Ivins.“ Sweets’ roots are in St. Louis and her family once published the St. Louis American, but food writing took her to Texas where she became a friend of the raucously liberal syndicated columnist, who had a particularly pointed pen for the Republican puffery. Sweets wrote the memoir with recipes after Molly’s death four years ago. The tome is getting high praise from reviewers and is #87 among cookbooks in the Amazon.com rating. She’s in town for a book signing at Left Bank Books at 7 p.m., Dec. 13. She’s been on the signing circuit all over Texas, New Orleans and the Beltway.