Pull up a seat and enjoy a home cooked made like mom meals! Purple Onion is located conveniently off Exit 33 and located on U.S. 6 downtown Annawan, IL. You are encouraged to pull off the interstate and experience this gem! Breakfasts are cooked to order, daily lunch and dinner specials. A local favorite is the homemade pork tenderloin and onion rings are the real deal! Save room for a slice of pie!