Prepare your own vinaigrette for this easy no-cook salad by simply shaking all the ingredients in a jar.
Lay out quartered endive leaves on a platter.
Crumble blue cheese into a large jar. Using a fork, smash up the cheese a little bit in the jar.
Add to the jar vinegar, olive oil, and pepper. Put a lid tightly on the jar and shake the dressing until it's creamy and combined.
Pour a few tablespoons of dressing over the salad and serve immediately. Store extra dressing in the refrigerator.