Toss the cheese with the flour in a bowl. Place a metal bowl over a saucepan filled with 2 inches of water. You may also use a conventional double boiler. Bring the water to a boil over high heat. Reduce… more
Mix breadcrumbs and milk in a small bowl until fully moistened; set aside.
Combine tomato sauce and pepperoni (if using) in a small saucepan and heat to simmering.
Stir in breadcrumb-milk mixture and simmer for 2 minutes, stirring constantly.