Add the pork ribs to a large pot. Add cold tap water to cover the ribs. Add the Shaoxing wine, ginger, green onion, star anise and chili pepper to the pot. Cover and cook over medium-high heat until brought to a boil. Uncover and continue to cook for 5 minutes. Use a ladle to skim the foam from the surface and discard it. Once done, transfer the ribs to a colander to drain. You can strain and save the broth, so you can use it to make a soup later (*see footnote 2).