Cabaña de Las Lilas is one of the most famous steakhouses in Buenos Aires, let alone all of Argentina. When we walked in I recognized everything — the open kitchen, the smell of charred beef, the outdoor patio on the river – from my visit 10 years ago. We happened to be there this time on Mothers Day, which is celebrated on October 20 in Argentina and Chile. But we weren’t there to celebrate moms. The “we” I refer to is my group of fellow travel writers, all on a wine trip through Chile and Mendoza. Our last stop was a few hours in Buenos Aires. Most of the hours were spent at Cabaña Las Lilas. We weren’t complaining though, because that meant a three hour lunch with the most famous winery duo in Argentina, Nicolás and Elena Catena, proprietors of Bodega Catena Zapata in Mendoza. I was lucky enough…