Cucumber Salad

2 cucumbers, peel removed and cut very thin
1/2 small onion, peeled and sliced very thin
1 1/2 TBS salt
1 TBS plus 1 tsp white vinegar
1 good pinch of sugar or splenda
2 TBS mayonnaise

Put cucumbers and onions in a bowl and add salt. Toss to coat. Just cover with water. Let sit for 30 minutes.
Drain off water and rinse 1 time. 

Mix vinegar, sugar and mayonnaise in a bowl. Add to cucumbers and toss to mix. This salad is delicious if made up ahead so flavors can marry.