If Mariah Carey doesn’t do anything else, she is going to get to that Christmas bag! In time for the holiday, the singer is launching her own line of sweet treats just in time for National Cookie Day — which is observed on Dec. 4, reports Daily News. Mariah’s Cookies will have flavors that range from classic favorites to holiday treats in collaboration with restaurateur, Robert Earl, the founder of Planet Hollywood and owner of chains like Brio Italian Grille, Bertucci’s, and Bravo! Italian Kitchen. According to Daily News, most recently, Earl started Virtual Dining Concepts with a focus on delivery only food. “Mariah and I have chatted over the years about working together on a food business and, with her love of baking, cookies were a natural fit,” said Earl in a statement. “As Mariah is synonymous with the holidays and celebration, we will make sure that her special holiday flavors are available not only for the holidays but year-round.” The “All I Want For Christmas” singer...