Freezer Cucumber Pickles

4 lb Pickling cucumbers, sliced

8 c Thinly sliced onions

1/4 c Salt

3/4 c Water

4 c Sugar

2 c Cider vinegar

Combine cucumbers, onions, salt and water in two large bowls. Let stand at room temperature for 2 hours. Add sugar and vinegar; stir until sugar dissolves. Pack into 1-pint freezer containers, leaving 1-inch headspace. Cover and freeze for up to 6 weeks. Thaw at room temperature for 4 hours before serving.