Japanese Tonjiru vs Potage Concept Miso Soup Depth

Ingredients

• For the dashi
• 1 litre ichiban dashi (kombu and katsuobushi first dashi)
• For the tonjiru
• 300 g pork belly or shoulder, cut into 3–4 cm pieces
• 1 tsp sesame oil, for sautéing, plus 1 tsp reserved for finishing
• 100 g gobo (burdock root), scrubbed, sliced on the bias
• 100 g daikon, peeled, cut into half-moons
• 80 g carrot, peeled, cut into half-moons
• 100 g konnyaku, torn into rough pieces
• 1 sheet aburaage (thin fried tofu), cut into strips
• For the miso
• 4 tbsp aka (red) miso, dissolved in a ladleful of hot dashi before adding
• To finish
• 1 pinch togarashi (Japanese chilli flake)
• For everyday miso soup (shiro or awase base)
• 400 g silken tofu, cut into 2 cm cubes
• 10 g dried wakame, soaked and drained
• 3 tbsp shiro (white) or awase (blended) miso, dissolved in a ladleful of hot dashi before adding

Method

1. 1
   Prepare one litre of ichiban dashi — kombu and katsuobushi first dashi — as the foundation of the soup. The quality of this dashi determines the quality of the finished preparation more than any other single element. The dashi is ready when it is clear, pale gold, and carries a clean marine-savoury aroma.
2. 2
   Heat a heavy pot over medium heat and add one teaspoon of sesame oil. Add the pork pieces in a single layer and sauté without moving them until each side shows a firm, golden-brown crust with visible Maillard colouration. This step is where the dish lives or dies: raw pork added directly to water produces a flat, grey broth; properly browned pork renders its fat into the vessel and deposits the aromatic compounds that give tonjiru its defining depth. The pot should smell of roasting meat, not steaming.
3. 3
   Add the gobo, daikon, carrot, and konnyaku to the pot with the browned pork. Pour over the ichiban dashi. Bring to a gentle simmer and cook until the burdock root is fully tender — approximately 15 minutes. Pierce the gobo with a skewer; it should yield without resistance.
4. 4
   Add the aburaage strips and continue to simmer for two to three minutes, until the aburaage has softened and absorbed the broth. The liquid should be opaque and faintly golden from the rendered pork fat.
5. 5
   Remove the pot from heat. Place the aka miso in a ladle, add a small amount of the hot broth, and stir to form a smooth, lump-free paste. Stir this dissolved miso into the soup. Miso is never boiled after adding — the soup must not exceed 80°C once the miso has been incorporated, as boiling destroys volatile aromatic compounds and denatures the living cultures of unpasteurised miso. Taste for seasoning; the standard proportion is one tablespoon of miso per 250 ml of dashi, adjusted before serving.
6. 6
   Add the reserved teaspoon of sesame oil and a pinch of togarashi directly to the pot and stir once. Ladle into warmed bowls and serve immediately. The soup should be savoury, round, and faintly smoky from the sesame, with a background warmth from the chilli.