Gyudon (Mangkuk Nasi Daging Sapi Jepang)

Bahan-bahan (2 porsi)

• ½ lb thinly sliced beef (such as ribeye)
• ½ onion ((4 oz, 113 g))
• 1 g reen onion/scallion
• ½ cup dashi (Japanese soup stock)
• 2 Tbsp sake ((substitute with dry sherry or Chinese rice wine, or use water for a non-alcohol version))
• 2 Tbsp mirin ((or use 2 Tbsp sake/water + 2 tsp sugar))
• 3 Tbsp soy sauce
• 1 Tbsp sugar ((to taste))
• 2 servings cooked Japanese short-grain rice ((typically 1⅔ cups (250 g) per donburi serving))
• pickled red ginger ((to garnish))