Prepare all ingredients.

Mix all sauce ingredients: soy sauce, oyster sauce, sugar, minced garlic, sesame oil, and water.

Thinly slice the onion.

Slice the green onion into thin strips. For straight strips, slice along the grain; for curly strips, slice against the grain.

Chop the remaining green onion for stir-frying.

Heat a generous amount of oil in a pan over low heat and stir-fry the green onion.

When the green onion changes color slightly, add the sliced onion.

Add the chicken breast can and the prepared sauce to the pan.

Stir-fry over medium heat until the liquid evaporates, then add 1/2 cup of water.

Simmer until the sauce thickens and coats the chicken evenly.

Plate the chicken and garnish with the drained green onion strips.