1 c. salad dressing or mayo
1/4 c. sugar
4 tsp. vinegar
1/2 tsp. dill weed
1/2 tsp. salt (optional)
4 medium cucumbers, peeled and thinly sliced
3 onions, sliced and broken into rings

In a large bowl, combine salad dressing, sugar, vinegar, dill and salt, if desired; mix well. Add cucumbers and onions; toss. Cover and chill for at least 1 one hour.