2 qt. thinly sliced cucumbers
1 lg. onion, sliced
2 tbsp. canning salt

Put sliced cukes and onion in large dish. Sprinkle with salt and allow to stand 2 hours, covered.

1 1/2 c. sugar
1 c. vinegar
1 tsp. celery seed
1 tsp. mustard seed

Stir this mixture into sliced cukes and onion. Put into containers and freeze.