HEADNOTE
This sandwich is built on contrast: soft bread, rich egg, seasoned beef, and the quiet luxury of butter and mayonnaise. It is a Japanese-style composition, but stripped to its essentials, where texture carries the whole dish. Served cold or just slightly cool, it should feel neat, supple, and complete.

RECIPE ESSENTIALS
Dish category: Sandwich
Cuisine or origin: Japanese-inspired
Course type: Lunch or light meal
Yield: 1 sandwich
Serving size: 185 g
Prep time: 10 minutes
Cook time: 8 minutes
Total time: 18 minutes
Difficulty: Easy

EQUIPMENT
Small frying pan
Mixing bowl
Fork
Spatula
Sharp knife
Kitchen scale
Plate

INGREDIENTS
Shokupan bread, crusts removed, 90 g
Egg, 50 g
Beef, finely sliced or minced, 25 g
Mayonnaise, 12 g
Butter, softened, 8 g
Black pepper, freshly ground, 0.5 g

METHOD

1. Place the egg in a small bowl and beat it just enough to combine the white and yolk into a uniform mixture.

2. Heat the frying pan over medium heat. Add the beef and cook for 2 to 3 minutes, stirring or turning as needed, until it loses its raw color and becomes lightly browned. The meat should remain tender, not dry.

3. Add the beaten egg to the pan with the beef. Stir gently for 1 to 2 minutes until the egg forms soft curds and the mixture is just set, still moist and supple. Remove from the heat and season with the black pepper.

4. Lay the shokupan slices on a clean board. Spread the butter evenly over one side of each slice. Spread the mayonnaise over the other side of each slice.

5. Spoon the egg and beef mixture onto one slice and spread it into an even layer, keeping it within the edges. Close with the second slice, pressing lightly so the sandwich holds together without compressing the bread.

6. Trim any uneven edges if necessary. Rest the sandwich for 1 minute, then cut cleanly into two rectangles or two triangles with a sharp knife.

PLATING AND SERVING
Serve immediately on a plain plate, cut side visible. The bread should remain pale and tender, the filling compact and glossy, with the black pepper providing the final line of aroma and heat.

PROFESSIONAL NOTES
Keep the egg mixture soft; overcooking will flatten the sandwich.
Use very fresh shokupan, as its fine crumb is the structure of the dish.
Press only lightly when assembling so the filling stays plush and the bread does not collapse.