2 1/2 cups shrimp stock (best), canned chicken stock, or water
10-12 shrimp or 8 oz (head-on and shell-on but chop the eyes part off, devein if you like)
3 1/2 tablespoons lime juice
6 bird’s eyes chilies (pounded)
3 (big) slices galangal
6 kaffir lime leaves (bruised)
2 tablespoons nam prik pao (Thai roasted chili paste)
2 tablespoons oil of nam prik pao
3 teaspoons fish sauce
1 stalk lemongrass (cut into 3-inch strips, pounded with a cleaver)
6 canned straw mushrooms / fresh oyster mushrooms / fresh or canned button mushrooms