Sweet potato rice (Gogumabap: 고구마밥)

Full recipe: http://www.maangchi.com/recipe/gogumabap
Ingredients (for 2-3 servings):

1 cup of short grain rice
1 pound (453 grams) of sweet potato
Water
For seasoning sauce:

½ cup of chopped Asian chives (can be replaced with green onions)
1 clove of minced garlic
¼ cup soy sauce
1 ts honey
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