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Whether they are topped with bacon or given an Asian twist, the hot dog is making comeback on restaurant menus in a variety of different way.
Puka Dog

Puka Dog
Puka Dog
This single-unit restaurant on the Hawaiian island of Kauai is known for its unusual hot dog bun and proprietary condiments made from local ingredients. Customers can choose from a Polish sausage made of chicken, pork and beef, or a veggie dog. Toppings include a garlic-lemon sauce made from a secret recipe; lilikoi mustard; and fresh fruit relishes made of mango, pineapple, papaya, coconut, banana or star fruit. The item is served in French bread with a hole, or puka, in the center, instead of a traditional hot dog bun. Price: Starts at $6.75.