in 2 qt of chicken stock, 1 tsp garlic paste, 1/2 tsp grated ginger, 1/2 tblsp sugar and 5 to 10 scallions (depending on the size), seasoned lightly with kosher salt and chili flakes,simmer 2 lbs mollejas until tender but still with a slight bite, ca 2 hours (some mollejas are tougher than others), remove and discard the scallions, (there should be about 1 qt remaining, otherwise adjust by reducing or adding more stock), season soup with 1 tblsp toasted sesame oil and chili oil to taste