Pour the desired vinegar into a small bowl. (If you are new to making dressing, start with a 50/50 ratio, but this can be adjusted to your personal tastes.)
Add a little salt & pepper if desired (this can be done now or at the end).
Whisk the vinegar as you slowly drizzle the oil into the bowl. Continue to whisk the oil & vinegar until they start to bubble & the color will start to lighten. As you get close, it will get a sheen as they thicken & are no longer separating. It will take a few minutes.
Serve over your inspirational salad and enjoy.