South American cuisine pizza, being closer to calzones. Pasta and polenta are common in Argentina and on the Pampas generally. Empanadas and choripán are very popular fast food in Argentina and Uruguay. Churros, ensaïmada, alfajor, Spanish tortillas with potato, meatballs, sopa de mondongo, and puchero are Spanish derived Pampas cuisine. Mate is also found on the Pampas. Early South American restaurants in the United States included Caso do Brazil in Reseda, California, which opened in 1955, and the Machu Picchu nightclub in Miami, Florida, which opened in 1963, serving Peruvian dishes such as ceviche and anticuchos. South American foods are increasingly imported into
Argentina–Uruguay relations and Uruguay were first established in the 1827 Peace Convention. In the period between the Peace Convention and the 1973 Boundary Treaty between Uruguay and Argentina in which are set most of the contemporary limits between both countries, the Uruguayan-Argentinian boundary was stablished just somewhere in the River Uruguay. According to what was called Zeballos's Doctrine due to Argentinian Chancellor between 1854 and 1923, Estanislao Severo Zeballos, Uruguay should had no jurisdiction at all over the River Plate that should only pertain to Argentina. During José Figueroa Alcorta's Argentinian presidency three mayor incidents encountered: In a treaty of June 18