Sancocho-Panama's Chicken Soup. Sancocho is a traditional Panamanian chicken soup flavored with culantro, oregano, onions and garlic. The Panamanians say you should eat Sancocho for lunch on hot days because it will help cool you off.hoto from Cooking in Panama. 1  Start by killing the chicken-no I'm kidding, but that is the way the Panamanian women start. 2  In a big pot add water and chicken pieces bones and all. 3  When the chicken is cooked through and the veggies are soft, it is edible. 4  Serve the soup with a plate of white rice on the side.