Potato Croquettes

Ingredients

• 2 cups cold riced potatoes
• 1/2 teaspoon salt
• 1/8 teaspoon pepper
• 1/4 teaspoon celery salt
• 2 tablespoons butter
• 1 egg yolk, slightly beaten
• 1 teaspoon chopped parsley
• Few drops onion juice
• Bread crumbs
• 1 egg, well beaten