Sanitize all work areas, cutting boards, equipment and sinks used in the preparation of this recipe.
Cut gruyere cheese and pizza cheese into useable blocks that will fit into the Hobart grating attachment fitted with the 3/16" grating plate.
Using the Hobart, set at #2 speed, carefully place cut cheese into the grater. Alternate gruyere and provolone to ensure that the cheese is mixed evenly.
Using food handler gloves, mix cheese again.
Transfer to a clean food storage container. Cover, label, date and store refrigerated.