Potato Salad Vinaigrette

This is a potato salad with no mayonnaise.
You'll see just how little oil is needed.
Add the dressing while the potatoes are hot.
It helps the vinegar permeate the potatoes.

Ingredients:
1/4 cup seasoned rice vinegar
2 tablespoons canola oil
1/4 teaspoon salt or to taste
1/8 teaspoon ground black pepper

Salad:
5 cups cubed red potato (about 2 pounds)
1/2 teaspoon salt or to taste
1 cup chopped peeled cucumber
3/4 cup sliced grape or cherry tomatoes
3/4 cup chopped green bell pepper
1/2 cup chopped orange bell pepper
1/4 cup chopped green onions
1 (2 1/4-ounce) can sliced black olives, drained

Directions:
To prepare dressing:
Combine first 4 ingredients in a large bowl.
To prepare salad:
Place potato and 1/2 teaspoon salt in a medium saucepan.
Cover with water to 2 inches above potato; bring to a boil.
Reduce heat, and simmer 8 minutes or until tender; drain.
Add potato to dressing in bowl, tossing gently to coat;
let stand 15 minutes. Stir in cucumber and remaining ingredients;
toss well. Cover and chill.