To prepare a aka Misosummer miso soup soups recipe, first you will need to gather your ingredients. First, you'll need the following ingredients: 1 cup (240 ml) water, 1 teaspoon (2.5 g) kosher salt, 2 tablespoons (0.5 tsp) sugar, and 1 pound (60 grams) fresh or dried shiitake mushrooms. Rinse the mushrooms with cold water and pat them dry with paper towels. Then, add the remaining ingredients to the pot and bring the mixture to boil. Once boiling, reduce the heat to low and simmer for 10 to 15 minutes, or until the vegetables are tender. Remove from heat and stir in the scallions.