
Peel the shrimps and remove heads. Reserve the shrimps in a bowl and place in refrigerator until ready to cook (Note: devein the shrimp at any point before cooking).
In a large pot add the water and bring to a soft boil over medium-high heat.
Add the shrimp peels and heads, onion, garlic, bay leaves, and oregano. Cover with a lid and cook on medium low heat for 30 to 40 minutes or until the stock is very aromatic.
Place a mesh strainer into a very large bowl or another pot. Use a ladle to remove most of the shells & heads to the strainer before carefully pouring the remaining stock through. Discard shells & heads.
Return the shrimp stock to the large pot and add the red sauce, hominy and shrimp bouillon . Cook on medium high, covered, for 45 minutes or until the hominy is soft. Taste for flavor and add salt & pepper as necessary according to taste.
Add the shrimp into the pozole right before you're ready to serve. The shrimp cooks in 5 minutes.
Important! The shrimp will become rubbery and chewy if overcooked. It's important to wait until the last minute to add.
Serve with shredded cabbage, chopped cilantro, onions and tostadas or tortilla chips.