500g of black beans, 0/00g of balsamic vinegar/kloc-,8g of brown sugar, 20g of wet starch, proper amount of Chili powder and proper amount of refined salt. Soak the black beans for one day after washing, drain the water and steam them in water until they are cooked and soft. Stir the balsamic vinegar, brown sugar and wet starch together and put them in a pot. Simmer them with a spoon until they thicken. Pour the steamed black beans into the pot, add refined salt and Chili powder, mix well and adjust the taste, and serve. Because black beans tonify the kidney, they are pickled into the kidney. Salt has the same effect as black beans. If you feel trouble, you can just drink them.