- 3/4 pound peeled and deveined medium shrimp
 - 1 celery rib, sliced
 - 1 firm-ripe 6-to 8-ounces avocado, chopped
 - 1 Kirby cucumber, peeled and chopped
 - 1 plum tomato, seeded and chopped
 - 3 tablespoons finely chopped white onion
 - 1 small garlic clove, minced
 - 2 tablespoons chopped cilantro
 - 1/4 cup ketchup
 - 3 tablespoons fresh lime juice
 - 1 teaspoon adobo sauce from canned chipotles in adobo
 - 2 tablespoons water
 
- Cook shrimp in lightly salted boiling water until just cooked through, 2 to 3 minutes, then drain. Chill until cold, about 10 minutes.
 - Gently stir together remaining ingredients with 1/2 teaspoon salt, then stir in shrimp.