Kombu Tsukudani (Simmered Kombu)

Bahan-bahan (1 porsi)

• 2 oz used kombu (kelp)
• ½ tsp toasted white sesame seeds
• 1 dried red chili pepper
• 1 cup water
• 1 Tbsp mirin
• 1 Tbsp sake
• 1 tsp rice vinegar (unseasoned)
• 2 Tbsp soy sauce ((or more, if needed))
• 2 tsp sugar ((or add more for a sweeter taste))
• ½ tsp katsuobushi (dried bonito flakes) ((optional; skip for vegan/vegetarian))