Sup Miso Kubis dan Onsen Tamago

Bahan-bahan (3 porsi)

• ¼ onion
• 3 cups water
• 2 dashi packets
• ⅛ head green cabbage
• 3 Tbsp miso ((any type; plus more, to taste))
• 3 large eggs (50 g w/o shell)
• 1 g reen onion/scallion
• shichimi togarashi (Japanese seven spice) ((optional; for a spicy kick))
• Japanese sansho pepper ((optional; for a spicy kick))