How to Make It
Cook macaroni according to package directions. Stir together cream, next 5 ingredients, cooked macaroni, and 2 1/2 cups cheese in a large bowl.
Pour macaroni mixture into a lightly greased (with cooking spray) 6-qt. slow cooker; sprinkle remaining 1 1/2 cups cheese over macaroni mixture.
Cover and cook on HIGH 3 hours; reduce slow cooker to LOW, and cook 1 hour.