Meal #4 - Oman - Marak Shibass

Well, it had to happen eventually - something didn't turn out. For Saturday dinner, I tried making this shrimp-based soup from the Middle Eastern country of Oman. I got the recipe from an English language newspaper from Oman. The soup that I made looked just like the picture included with the recipe, but the taste was watery and disappointing. If I had to guess, I would say the fish and meat spices listed in the recipe is a different and stronger version than the generic American supermarket fish and meat spice I used.

I'll include the recipe here, just in case anyone wants to take a crack at making some changes and rescuing it. 
Ingredients
3 onion (chopped)
1kg prawns (boiled with turmeric)
6 garlic cloves (crushed)
3-4 dried lemon (peel)
1 tsp meat and fish spices
Green coriander
1 tbs tomato paste
4 tomatoes
Green chilli (if desired)
Salt
1/4 cup ghee

Method
Wash the prawns and shell or boil in water with 1 tsp turmeric and pinch of salt and shell.
Fry onions until brown. Add water when necessary. Add ghee, dried lemon, garlic, crushed spices and stir.
Chop the tomatoes and add together with the tomato paste. Add the prawns and leave to absorb the spices. Add the coriander and enough water. Bring to boil, then serve.
Do not add water.