01 - 
                Bring oil to 350°F and fry the rings till they've got a crispy golden crust.
              
              
              
                02 - 
                Place onto paper towels to drain. Enjoy hot while dipping into marinara.
              
              
              
                03 - 
                Arrange your dipping set-up with shallow bowls for flour, whisked eggs, and breadcrumbs.
              
              
              
                04 - 
                Cover each ring in flour, dunk in egg, coat in breadcrumbs. To make it crunchier, repeat egg and breadcrumbs.
              
              
              
                05 - 
                Pop the coated rings back into the freezer till they're completely firm.
              
              
              
                06 - 
                Cut onions into rings about 1/2-inch thick. Nest a small ring inside a bigger one and pair them up.
              
              
              
                07 - 
                Slice the mozzarella into thin strips. Tuck the cheese into the space between your onion rings. Freeze for at least an hour.