PHILADELPHIA — Insomnia Cookies, the national late-night bakery chain, announced today it will roll out its new Filled Chocolate Chunk Cookie, just in time for National Cookie Day on Dec. 4. This limited-edition treat is a first-of-its kind menu item that takes chocolate indulgence to the next level. A tantalizing take on classic Chocolate Chunk, this cookie is stuffed with Insomnia’s own rich, creamy Chocolate Cookie Butter and loaded with its iconic chocolate chunks. The item will be available at Insomnia locations throughout the month of December, or while supplies last.