Peel and wash your shrimp then pat dry with a paper towel. Using a small knife, butterfly the shrimp so that it lays flat. Season with a pinch of salt and pepper.
Lightly coat each shrimp in all-purpose flour and shake off any excess.
Beat the eggs in a bowl. You can add a pinch of salt.
Heat a non-stick skillet over medium heat and add a thin layer of cooking oil.
Dip each floured shrimp into the egg batter, ensuring it's well coated, and place it in the heated skillet. Cook for 1-2 minutes per side or until the shrimp is golden brown and cooked through.
For dipping sauce, combine the shoyu and vinegar and set aside.
Remove shrimp the skillet and place on a plate lined with paper towels to drain any excess oil. Serve warm with dipping sauce. You can also pair with hot rice and a variety of small side dishes called banchan.