Additional variations include crema, mustard, and chiles. You'd think it's the bacon-wrapped sausage and topping combo that makes the Sonoran so popular, but the key to a perfect Sonoran hot dog ...

Sold on the street in crusty-on-the-outside bolillo rolls, this type of hot dog is smoky, tangy and decadent. You may also see variations that call for pico de gallo, Mexican crema or guacamole.

There’s a whole world of condiments, toppings and buns out there (literally — there are dozens of regional hot dog variations), and we’re giving you the recipes you need to explore it.

Windy City Hot Dog festival, running through Sunday at 4000 N. Milwaukee Ave. in Portage Park, has a variety of vendors offering traditional dogs ...

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