Step1:First put the slag into a container.
Step2:Wash with water for 2 or 3 times.
Step3:Boil the water in the pot and pour the cleaned slag into the pot. (the ratio of water and slag is 3-1 is preferred). Stir evenly with a spoon. Boil for about 10 minutes on a low heat.
Step4:It's OK to boil it thick.
Cooking tips:There are skills in making delicious dishes.