Wappameshi Akita Wooden Box Steam Rice Mountain

Ingredients

• 360 g Japanese short-grain rice, washed and soaked 30 minutes, drained
• 400 ml dashi, cold
• Seasonal toppings (autumn)
• 120 g salmon fillet, salted lightly, cut into small pieces
• 80 g fresh mushrooms, maitake or shiitake, torn or sliced
• Seasonal toppings (spring)
• 80 g sansai mountain vegetables, blanched briefly; warabi, kogomi, or available local variety
• 40 g seri water parsley, washed, cut into short lengths
• Seasoning
• 2 tbsp soy sauce
• 1 tbsp sake
• 1 tsp mirin
• Vessel
• 4 wappa cedar or hinoki cypress boxes, seasoned with prior use or pre-boiled if new; lids included

Method

1. 1
   If the wappa boxes are new, submerge them in boiling water for several minutes, then drain and air-dry completely. This removes harsh raw-wood volatiles and initiates the seasoned layer essential to mellow cedar aroma. A properly prepared box smells clean and faintly sweet, not sharp or resinous.
2. 2
   Combine the dashi, soy sauce, sake, and mirin. Add the soaked and drained rice and stir briefly to distribute the seasoning. Divide the seasoned rice evenly among the four wappa boxes, filling each no more than two-thirds full to allow steam circulation. The surface of the rice should sit well below the rim.
3. 3
   Arrange the seasonal ingredients over the rice in each box — in autumn, pieces of lightly salted salmon and torn mushrooms; in spring, blanched sansai and seri. Lay the ingredients in a single composed layer without compressing the rice beneath. Place the lids on the boxes.
4. 4
   Set the closed boxes in a steamer over vigorously boiling water. Steam at full heat. This is where the dish lives or dies: the box must remain sealed throughout cooking so that the steam is contained within the cedar or hinoki vessel, forcing the aromatic wood fragrance to penetrate the rice from all sides simultaneously. Breaking the seal early dissipates the woody perfume that defines wappameshi. Steam until the rice is fully cooked and the box exhales a clean cedar or cypress fragrance when the lid is lifted — approximately 25 to 30 minutes, though the scent and the texture of the rice, which should be moist and cohesive rather than wet or dry, are the governing tests.
5. 5
   Remove the boxes from the steamer. Lift each lid away from the cook, allowing condensation to fall clear of the rice. The base of the rice may adhere lightly to the wood and show a faint toasted quality — this is expected and desirable. Serve the boxes closed at the table, opening at the moment of eating.