Parmesan Polenta Balls

Name: Parmesan Polenta Balls
Ingredients: 2 cups whole milk (500ml); 1 cup water (250ml); 2 teaspoons extra virgin olive oil; 1/2 cup yellow onion, finely diced; 1 large garlic clove, finely diced; 1/4 teaspoon black pepper; pinch freshly ground nutmeg; 3/4 teaspoon salt; 1 cup polenta (250g); 2 1/4 cups parmesan, grated; 1 tablespoon fresh parsley, chopped; 1 cup plain flour; 1 cup panko; vegetable oil for frying