Asari clam soy milk soup Items used | φ176 open fire rim bowlIngredients Asari clam Soy milk Miso Mirin Myoga Ground sansho pepper Baking powder How to make Put soy milk, baking powder, and mirin in a pot, and heat over medium heat. When it starts to boil, add the asari clams. Once the clam shells open, dissolve miso and add it. Garnish with shredded myoga and sprinkle with ground sansho pepper.