SESAME SEEDS COD FISH WITH FOUR SAUCES

Name: SESAME SEEDS COD FISH WITH FOUR SAUCES
Ingredients: About 1 lb of cod fillet (other suitable fishes: sea bass, salmon, grouper, tilapia); 3 Tbsp of all-purpose flour; 1 egg; 1/2 Cup white sesame seeds; 1 stalk spring onion (finely chopped); 2 slices ginger (finely minced); 1/2 tsp salt; 1/4 tsp pepper; 1/2 tsp sesame oil; Vegetable oil for deep fry; 1 Cup of mayonnaise; 1 Cup of ketchup; Dash of Szechuan peppercorn (crushed- optional); Oyster sauce: Bring 1 Tbsp of oyster sauce + 1/2 Tbsp oil + 2 Tbsp of water to a boil; Mix all the sauces ingredients together and set aside