Beef Gyudon | Dinners | Umami

Ingredients

• 1 lb thinly sliced beef chuck
• 1 onion
• 1 cup water
• 1 pack dashi powder
• 3 tbsp soy sauce
• 3 tbsp mirin
• 3 tbsp sugar
• 1/2 tbsp grated ginger
• cooked rice
• green onions
• Onsen tamago (optional but recommended!)