Pickled Turnip with Yuzu

Bahan-bahan (2 porsi)

• 3 Japanese turnips (kabu) ((leaves attached; you can also use cucumbers, daikon, or napa cabbage))
• 1 piece kombu (dried kelp) ((1½ x 1½ inches, 3.8 x 3.8 cm per piece))
• ½ dried red chili pepper
• 1 tsp yuzu zest ((or lemon zest))
• ½ –1 tsp Diamond Crystal kosher salt
• 1 Tbsp yuzu juice (extract) ((or lemon juice; optional))