Preserved Daikon Radish

Ingredients

• 2 daikon radishes ((about 3 pounds/1.5 kg))
• 1 1/2 tablespoons salt ((25g))
• 1 teaspoon sugar
• 1 1/2 teaspoons sesame oil
• 2 teaspoons light soy sauce
• 1/8 teaspoon dried chili flakes ((optional))
• 1 tablespoon pickled chili sauce (duojiao) ((optional))