Step 1

Slice the red onions very thinly using a sharp knife or a mandoline slicer.

Step 2

Sprinkle the sliced onions with 1 tablespoon salt and rub the salt into the onions.

Step 3

Cover the onions with cold water and rinse well until the salt is removed. If the onions are very strong then you can let them rest in the water for 5-10 minutes.

Step 4

Drain the onions and place them in a bowl.

Step 5

Add the lime juice and a sprinkle of salt, let rest until the onions start to turn pinkish, about 5-10 minutes.

Step 6

The tomatoes can be sliced thinly or diced. Add the tomatoes to the onion curtido mix.

Step 7

Add the oil and the chopped cilantro. Mix well, taste and add additional salt to taste if needed.