Final answer:
In Santiago, Chile, the famous street food to try is the Completo, a large Chilean hot dog with varied toppings. Central Chile, including Santiago, is known for its diverse and vibrant culinary scene, where the Completo is a popular fast food choice.
Step-by-step explanation:
When exploring Santiago, Chile, for authentic local street food, one should try the Completo, which is a large hot dog topped with a variety of sauces and ingredients. This is a beloved snack across Chile and reflects the country's urban culture and the influences of international cuisine on traditional foods. Central Chile, which includes Santiago, is a gastronomic hub, known for its diverse and rich culinary landscape, where the Completo stands out as a quintessential fast food. Santiago, being Chile's most populous city, provides a range of dining experiences from traditional Chilean steakhouses to local street food markets. Trying the Completo would give one a taste of the vibrant street food scene that complements the formal culinary offerings of steak and other Chilean delicacies. As a region home to more than 90 percent of the country's population, central Chile is not only a political and economic center but also a cultural one with its food being a significant part of the local identity.