Boil pork slices with vinegar, soy sauce, bay leaves, peppercorn, garlic and onions.
When the pork is already soft/cooked you could add the clean squid. Bring to boil.
Add salt and sugar to taste.
After few minutes remove from heat and serve.
You don't want to overcook the squid or else it will get chewy.
Give it a try. Really worth the time. You have the squid adobo and the pork as bonus.