Ebi Goreng (Udang Goreng Jepang)

Bahan-bahan (4 porsi)

• 1 lb prawn ((17 extra jumbo/colossal prawns such as black tiger; 4–5 pieces of shrimp weigh 3 oz))
• Diamond Crystal kosher salt
• freshly ground black pepper
• ½ cup all-purpose flour (plain flour)
• 3 large eggs (50 g w/o shell)
• 2 cups panko (Japanese breadcrumbs)
• 4 cups neutral oil ((for deep-frying))
• 2 large eggs (50 g w/o shell)
• ¼ onion
• 1 pickle ((or 7 cornichons/gherkins))
• Diamond Crystal kosher salt ((to taste))
• freshly ground black pepper ((to taste))
• ½ lemon
• 4 Tbsp Japanese Kewpie mayonnaise
• parsley ((optional))