Name: Tom Yum Soup (Thai Soup)
Prep time: 15 min
Cook time: 20 min
Total time: 35 min
Yield: 2
Ingredients: 300g / 10oz whole prawns / shrimp (with heads and shells on (Note 7)); 3 cup (750 ml) water; 1/2 cup (125 ml) chicken stock/broth (, low sodium); 2 stalks of lemongrass (, outer layers peeled(Note 1)); 1.5 cm / 3/5" piece of galangal (, cut into 4 slices (Note 2)); 5 kaffir lime leaves (, torn roughly (Note 3)); 2 Thai or birdseye chillies ((Note 4)); 3 garlic cloves; 120g / 4oz oyster mushrooms; 1 roma tomato (, cut into wedges); 1/2 white onion ((medium sized), cut into wedges about 1 cm thick); 1 tsp sugar; 3 tbsp fish sauce ((Note 5)); 3 tbsp lime juice; Coriander/cilantro (, for garnish); 1 1/2 tbsp Thai roasted chili sauce ((Nam Prik Pa, Note 6)); 1/3 cup (75 ml) evaporated milk