Swedish Meatballs For One

Name: Swedish Meatballs For One
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Cuisine: European
Ingredients: 1 large egg yolk; 1 tablespoon chopped onions; 1 tablespoon chopped parsley; 1 tablespoon breadcrumbs; ¼ teaspoon kosher salt; ⅛ teaspoon coarsely ground black pepper; ⅛ teaspoon ground nutmeg; ⅛ teaspoon ground allspice; 2 ounces ground pork; 2 ounces ground beef; 1 tablespoon olive oil; 1 tablespoon salted butter; 1 tablespoon all purpose flour; ½ cup low sodium beef broth; 2 tablespoons sour cream; 1 ⅛ cups cooked elbow macaroni ((2-ounces uncooked pasta. Feel free to use your favorite small pasta))