The definitive and most famous culinary specialty of Porto is the Francesinha, a decadent and hearty sandwich that has become a symbol of the city. Inspired by the French croque-monsieur, this "little Frenchie" is made with layers of toasted bread filled with wet-cured ham, linguiça (a garlicky smoked sausage), fresh sausage like chipolata, and steak or roast meat. The entire sandwich is then smothered in melted cheese and drenched in a thick, hot, and slightly spicy sauce made from tomato and beer. It is traditionally served with a side of French fries and often topped with a fried egg. Beyond the Francesinha, Porto is also deeply associated with Tripas à moda do Porto (tripe in the Porto style), a rich stew of tripe, white beans, and various meats that dates back to the 15th century and earned the city's inhabitants the nickname "tripeiros." For those with a sweet tooth, the city’s favorite treat is the Porto Eclair, often enjoyed with a glass of the world-famous Port Wine, which is produced in the nearby Douro Valley and aged in the historic cellars across the river in Vila Nova de Gaia.