The present disclosure describes an automated blend in-cup apparatus and the related method of operation. The disclosure relates generally to the field of mixing consumable material. More specifically, the disclosure relates to a mixer that is automatically operable to lower a mixing blade into a cup or vessel that contains material to be blended/mixed. A shield is automatically lowered to at least partially isolate the cup. The apparatus further comprises a well with an inlet manifold and a drain and a fixed but removable cup-receiving holder. The shield can include a magnetic portion that is detected by a first sensor on the apparatus. A safety interlock prevents the actuation of the mixing blade in the event that the magnetic portion is not proximate to the first sensor. Overall, the apparatus is effective, fast, easy to operate, safe, and clean.