A far cry from the usual sour-cream-and-dill cucumber soup and a welcome change in midsummer, this soup may be prepared a day or two in advance, and can be made more substantial by adding about a cup of cold cooked crabmeat or shrimp at the last minute.

Ingredients

• About 4 pounds of long, "English" cucumbers
• 2 small fresh chiles, minced, or dried red pepper flakes to taste
• 2 tablespoons nam pla or nuoc mam (Asian fish sauce), or salt to taste
• Juice of 3 limes
• 1 tablespoon chopped mint leaves
• 1 tablespoon chopped cilantro leaves
• 1 cup cooked crabmeat or shrimp chunks (optional)

1. Wash the cucumbers, but don’t peel them. Cut off a piece of one and mince enough to make 1 cup; set aside. Put the rest of the cucumbers through a juicer, or puree in a blender or food processor and wring the resulting pulp in a cheesecloth to extract the juice.

2. Season the juice with the chiles, nam pla, and lime juice. Chill well. (You may prepare the recipe in advance up to this point; refrigerate in a covered container for up to 2 days.)

3. Taste the soup and adjust the seasoning, if necessary. Serve, garnished with the reserved minced cucumber, mint, cilantro, and crabmeat or shrimp, if using.