Prepare the anchovies by cleaning and trimming them.
Heat oil in a pan and stir-fry the anchovies.
Slice onion and green onion, add them to the pan, and stir-fry together.
Add gochujang (Korean red pepper paste), sugar, soy sauce, and minced garlic, and stir-fry.
Add tteokbokki rice cakes and water, then bring to a boil.
Once all ingredients are well combined, finish by drizzling sesame oil and sprinkling sesame seeds.