Step 1: Cut the cucumber(s) into 1⁄4-inch dice.
Step 2: Place the cucumber(s), shallot, chile, rice vinegar, and sugar in a mixing bowl and toss gently to mix. Season with salt and pepper to taste. The relish can be made up to 2 hours ahead.
Note: It is not necessary to seed Kirby cucumbers.
Serve with The Best Beef Sates in Singapore.