Tangy Mashed Potato Salad

Yield:	4 Servings
Categories:	Salads, Potatoes

2	lb	Red-skinned potatoes; scrubbed and quartered
		Salt
1	c	Plain yogurt
1	c	Mayonnaise
3	tb	Minced fresh dill
2	tb	Red wine vinegar
1	ts	Fresh black pepper
1/3	c	Finely diced red onions