1. Wash the ribs and control water for later use.
2. Put the washed ribs in a casserole and add an appropriate amount of water.
3. Bring to a boil on high heat and skim the floating powder with a spoon.
4. Add scallions and ginger slices.
5. Turn to low heat, cover and simmer for 45 minutes.
6. Peel the winter melon and cut into thick slices.
7. Put it in a casserole.
8. Add salt, continue to simmer for 20 minutes and turn off the heat.
Tips:Do not add MSG, add salt at the end.
