Peel, halve, and slice into half-moons:

1 medium cucumber
Toss in a medium-size bowl with:
A pinch of salt

Allow to sit for 10 minutes. Drain off any liquid that has collected. Stir in:
3/4 cup whole-milk yogurt
1 small garlic clove, pounded to a puree
1 tablespoon olive oil
1/2 bunch lime basil or 2 mint springs, leaves only, cut in chiffonade