Taiwanese style broth.

1. Heat 1 tablespoon of oil in a medium-size pot (about 2 liters), add tomatoes, garlic, ginger, and scallions. Cook, stirring frequently until the vegetables are starting to brown around the edges and the tomatoes are falling apart. (I like to char my vegetables for deeper flavor). 
2. Add cinnamon bark, star anise, fennel seeds, coriander seeds, Sichuan peppercorns, chiles, and cook, stirring for a couple of minutes.
3. Add Shaoxing wine, mushroom stock, brown sugar, and bay leaf. Bring to a soft boil, and then lower the temperature, and simmer for about 15 minutes. Turn of the heat and the broth steep for an hour to infuse all the aromatics.
4. Strain the broth, discard the vegetables and spices, you won't need them anymore. Reheat the broth and serve with toppings of your choice. The broth itself will keep in the fridge for up to 5 days. I always cook a double portion and freeze it in small containers.  

Enjoy!