First, cut your onion, green pepper and set them aside for later. Now take the tail off your shrimp and set it aside. In a large pot add half of your oil over medium high heat. Add your shrimp and cook for about 30 seconds on each side. Remove from heat to use later.
In the same pot add half of the onion and half of the green pepper. Cook for about 4 minutes. Add half of the sofrito, half of the tomato sauce and the shrimp tails. Mix it all together and add half of your water. Cook for about 10 minutes. Now strain everything and keep only the stock and discard the rest.
In the same pot and still, over medium high heat add the rest of the oil, onion and green pepper. Cook for 4 minutes. Then add your garlic, cumin, sazón, salt, pepper and the rest of the tomato sauce and sofrito. Cook for another 2 minutes and stir constantly.
Now add the stock, water and wait for it to gently bubble. Then add your rice stir and cook on medium heat for about 20 minutes. Finally, add the shrimp for about 4 minutes. Serve and Enjoy.
Notes
1. For the rice to be extra tender I soak it for 30 minutes before cooking. I just added 1 cup of water.2. After the soup is done taste and if you feel it needs more salt add more to your taste.