Prepare the Stock: Combine dried anchovies, Korean radish, dried kelp, and water in a pot. Bring to a boil, then lower the heat and simmer for 30 minutes. Strain to get the stock.
Make Spicy Paste: Mix hot pepper flakes with sesame oil.
Cook Pork: In a pot, stir fry pork with a little cooking oil. Add onions and garlic.
Add Kimchi and Stock: Add kimchi to the pot with pork, then add half a cup of stock. Cover and let it simmer.
Combine Ingredients: Add the remaining stock, spicy paste, and bring to a boil. Season with salt and sugar.
Final Touches: Add an egg and green onion. Serve sizzling hot.