Step 1

In a large bowl, toss cucumbers and onion with salt. Chill in refrigerator 1 hour.

Step 2

Remove cucumbers from refrigerator and rinse with cold water several times. Drain cucumbers, then divide between several pint jars (or a half gallon jar)

Step 3

Combine sugars, cider vinegar, and mustard seeds in a medium saucepan over medium heat. Cook until sugar is completely dissolved and mixture is smooth. Remove from heat and allow to cool 30 minutes.

Step 4

Pour an equal amount of cooled brining liquid over cucumbers. Seal jars and chill in refrigerator overnight, at least 12 hours. Enjoy!