Mashed potatoes and Gravy Surprise

Name: Mashed potatoes and Gravy Surprise
Ingredients: 1 pound ground pork; 2 tablespoons milk; 1/4 cup panko breadcrumbs; 2 tablespoons parmesan cheese grated; 1 teaspoon salt; 1 teaspoon granulated garlic powder; 1 teaspoon granulated onion powder; 3 tablespoons applesauce; 1/4 cup vegetable oil to fry meatballs; 2 pounds yellow potatoes; 1 stick butter; To taste salt; 15 ounce evaporated milk; 1 quart Beef broth; 1/2 stick butter; To taste ground white pepper powder; To taste ground black pepper; 1/2 cup diced onion; 1/2 cup all-purpose flour