rinse bacalao with cold water and place in large bowl

fill with cold water just enough to cover the fish

cover and let soak overnight in refrigerator

remove from frige and rinse with cold water

place bacalao in large pot cover with cold water just enough to cover the fish

bring it to a hard boil and cook for 5 minutes

boil the fish a total of 3 times rinsing it with cold water inbetween (steps 4-6)

strain and lightly rinse with cold water...when cooled break fish down with fingers and place in large bowl

add onion and tomatoes to fish...set aside

in small bowl wisk together oil, vinegar, salt, and pepper. pour dressing over the fish and stir

add lettuce. seal the container with a lid and shake so that the dressing coats the lettuce

refrigerate for at least an hour....be sure to strain some of the dressing when servinvg

Tip: the longer it sits the better