Step 1

Thinly slice cucumbers, toss with two teaspoons of salt then add to a colander set over the sink or bowl. Let sit for 30 minutes.

Step 2

Rinse cucumbers with cold water then squeeze excess water from them. (To make this easy, we add the cucumbers to a clean dish towel then tie it up and squeeze).

Step 3

In a large bowl, whisk together two teaspoons of sugar, vinegar, and mustard. Taste then add the additional teaspoon of sugar if needed. Add cucumbers, and red onion then toss. Refrigerate salad at least 1 hour and up to a day before serving.