Cut all vages and meat first. Especially, you need to put potatos in the water, leave it for 30mins.

Malt butter in a pan with low heat. If it's melted all, add two table spoon of flour and stirs it's a whisk to prevent any lumps. Do this two more times.

Please make sure still heat is low. Pour milk and continue to stirring. At this time, do not pour all milk.

If you see all flour-butter mixture is gone, put Sault and chicken cube(powder one)

Put oil in the another pan. Cook chicken first. Then onion, potatoes (without water), carrot.

If you see it's all vages cooked, pour water and wait few minutes with medium heat. When water is boiled, pour white sauce that you make before with another pan.

With low heat, keep starring increasing the heat until the mixture thickens and bubbles. Then put mushrooms and put a lid of the pan. Leave it at least 10 mins.

Prepare individual plates. Put few broccories on the plate.