1-2chilesjalapeños, serranos, etc. - just make sure you taste a little piece before you add it to check the heat level; or ¾ teaspoon red chile flakes
Salt and pepper
Put everything in a bowl and mix together. Add salt and pepper to taste.
It's best if you can let it sit for a little while - like half an hour - for everything to come together, but it's also just fine if you eat it right away.
In order to prepare this cucumber salsa, you’ll need cucumbers, lemon juice, red onion, olive oil, cilantro, and chiles (like jalapeños or serranos). So be prepared to enjoy some serious spicy kick, but as always, you can adjust it by reducing the amount or the kind of chiles you add. If you’re not into hot and spicy salsas at all, just replace them with some green or red mild peppers.