Hei Zho / Hae Zhor / Hekeng Udang (Teochew Crispy Prawn Rolls)

Name: Hei Zho / Hae Zhor / Hekeng Udang (Teochew Crispy Prawn Rolls)
Prep time: 45 min
Cook time: 15 min
Total time: 1 h
Cuisine: African, Chinese, Asian
Ingredients: 600 gr shrimp; 300 gr ground pork (about 80% lean); 200 gr shallots (minced); 3 cloves garlic (minced); 200 gr water chestnuts (finely chopped); 1 stalk green onion (finely chopped); 1 large egg (about 58-60 grams with a shell); 1 Tbsp cornstarch; 1 Tbsp soy sauce; 1 Tbsp oyster sauce; 1 Tbsp fish sauce; 1 tsp sesame oil; 1 tsp five-spice powder; 1 tsp salt; 1 tsp ground white pepper; 50 gr dried beancurd sheets (or more as needed); 1 egg white; 6 Tbsp rice flour; cooking oil (enough for deep-frying); 1 tbsp rice flour; 2 Tbsp cooking oil