The main ingredient of gray beans is local peas, which are boiled with golden dates and ash. The ash, also unique to Lanzhou, is a type of edible alkali extracted from a plant, and is also used to make beef noodles. Adding the ash makes the hard-to-cook peas easy to soften, removes their astringent flavor, and brings out the peas' fresh aroma.
Cooking gray peas is simple, and there is no special practice or procedure. As long as the ingredients are good and the fire is appropriate, just wait patiently for the delicious pot, which really reflects the truth that the road is simple, delicious and heavenly.
Cooked gray beans, soup thick, peas have been soft and sandy, but not completely boiled, the mouth will have a little chewy. Scoop a spoonful, slowly chewing in the mouth, the sweetness of the dates, the fragrance of the beans in the mouth mingling diffuse, not a little bit of beans astringent fishy flavor, feel only the sweet sweet beans, thick soup make the taste more lubricated. Drink a bowl of hot, both satiating and gluttony.