Manduguk is a Korean soup made with mandu (dumplings). You can make this soup with any variation of dumplings, including pre-made store-bought ones and any flavorful broth including store-bought.
Stir in the garlic, soy sauce, and salt and pepper to taste. Add the mandu pieces, stirring gently so they don’t stick to the bottom of the pot. Boil until all of them float, and reduce the heat to medium and boil for an additional minute or two.