Soy Sauce: A classic for adding salinity, umami, and a beautiful dark color. Different types of soy sauce (light, dark, mushroom) can be used for varying effects.
Fish Sauce: Predominantly used in Southeast Asian broths (Thai, Vietnamese), fish sauce delivers an intense salty, savory, and pungent kick.
Miso Paste: A fermented soybean paste crucial for Japanese miso soup. It adds a rich, earthy, and savory depth, often added at the end of cooking to preserve its probiotic qualities.
Rice Wine (Sake, Shaoxing Wine, Mirin): Adds a subtle sweetness, depth, and helps to tenderize ingredients. Mirin, a sweet Japanese rice wine, is particularly common in Japanese broths.
Spices: Depending on the regional style, a variety of whole spices can be toasted and added:
Star Anise: Distinctive licorice-like flavor, common in Vietnamese pho and Chinese braises.
Cinnamon Stick: Adds warmth and a subtle sweetness.
Cloves: Pungent and aromatic.
Coriander Seeds: Earthy and citrusy.
Fennel Seeds: Anise-like and slightly sweet.
White Peppercorns: Provide a mild, earthy heat.