Peel your onion and slice small. Wash your spring onion and cut into small slices as well. Reserve the green spring onion stalks to garnish the soup.
1 Large White Onion, 2 Green Onion
Slice your mushrooms small and keep aside.
4 Medium Shiitake Mushrooms
Chop your peeled ginger and garlic and keep aside as well.
½ Inch Ginger Fresh, 2 Pieces Garlic Cloves
In a soup pan, heat the oil on a medium-high heat setting and sauté the onion slices with the white spring onion bulb until soft.
1-2 Tablespoon Oil
Decrease the heat a bit and stir in ginger and garlic. Cook soft for a minute or two but don't burn the garlic.
Stir in sliced mushrooms and sauté until slightly soft.
Pour in the beef broth and water (eventually water + mushroom water — see notes).
1 ¼ Cup Beef Broth, 2 ½ Cup Water
Season with soy sauce, black pepper and, if needed, salt.
1 Tablespoon Soy Sauce, ¼ Teaspoon Black Pepper Ground, To Taste Salt
Mix well and let your soup simmer for 10–15 minutes covered.
Serve with chopped fresh green spring onion stalks hot in a soup bowl.
Video
Notes
In this recipe, you can use fresh or dried mushrooms. To use fresh mushrooms, just cut the mushrooms and add to the soup with the mentioned broth and water amounts in the recipe. To use dried mushrooms, add 300 milliliters (10.14 fl oz/ 1 ¼ cup) water to the mushrooms in a bowl and let soak for 30 minutes. Then take out the mushrooms and press out some water, just pass quickly through the fresh water to get rid of impurities and cut the mushroom small. Keep the 300 ml mushroom water to the side because you will use that + 300 ml water instead of the 600 ml in the recipe. The mushroom water is full of flavors and will give your soup a great depth!
Choose your oil. You can use regular vegetable oil or some Asian oil such as peanut oil or sesame oil.