ripe kimchi,
sliced pork shoulder (but you can use other protein),
an onion, sliced into roughly 1/4" thick pieces,
serrano, sliced,
garlic clove, sliced,
dried anchovies or shrimp (You can sub a teaspoon of fish sauce or omit this component altogether if you don't have either.),
sugar,
water,
If you're going to eat this with steamed rice, best to get the rice started before you start on the jjigae