First, wash the shrimp thoroughly, peel them, and remove the vein. Save the shells—we'll use them for the broth. In a pot with water, add one tomato and the piece of onion.

Add the garlic, cilantro, shrimp shells, and a little salt. Let it boil for 20 minutes.

Wash all the vegetables. Chop the vegetables as finely as possible so they're pleasant to eat.

In a large bowl, add the chopped vegetables, ketchup, and habanero hot sauce (optional, or you can use another hot sauce). Add the diced avocado and lime juice. Then add some of the broth you made, adjust the seasoning, and enjoy your delicious shrimp cocktail.