Radish Kimchi Recipe with Ginger and Red Pepper

Ingredients (9)

• 3 cups filtered water
• 2 teaspoons kosher salt
• 1/2 teaspoon fish or soy sauce
• 3/4 pound radishes, such as globe, French breakfast, or watermelon
• 1/4 pound cabbage, leaves, cut into thin strips
• 1 small onion, thinly sliced
• 1 to 2 cloves garlic, thinly sliced
• 1 teaspoon grated fresh ginger
• 1/2 teaspoon crushed red pepper flakes, more to taste