Cantonese Cha Guo (Savory Rice Cakes)

Bahan-bahan (24 porsi)

• 6 zong
• 5 dried shiitake mushrooms ((about 15g))
• 1 ounce udang kering ((25 gram))
• 5 tablespoons vegetable oil ((75 ml, divided))
• 4 ounces daging babi giling ((115 gram))
• 2 teaspoons Shaoxing wine ((10 ml))
• 24 ounces daikon radish ((680 g, coarsely grated))
• 2 daun bawang
• 1/2 teaspoon sesame oil
• 2 tablespoons saus tiram
• 2 1/4 teaspoons salt ((divided))
• ½ teaspoon sugar ((2 g))
• 1/8 teaspoon lada putih
• 2 teaspoons kanji dr tepung jagung
• 1/4 cup cairan rendaman jamur
• 5 cups glutinous rice flour
• 1 cup all purpose flour ((125 g))
• 1/3 cup tapioca starch ((35 g))
• 2 cups boiling water ((470 ml))
• toasted sesame seeds ((to garnish))