Mustard Pickles

1 . Stage

Place cucumbers and onions into a large bowl and sprinkle salt over top. Fill the bowl with water until cucumbers are covered. Let stand for 8 to 10 hours.

2 . Stage

Drain and rinse cucumbers and onions with fresh water.

3 . Stage

Inspect four 1-quart jars for cracks and rings for rust, discarding any defective ones. Immerse in simmering water until needed. Wash new, unused lids and rings in warm soapy water.

4 . Stage

Stir sugar and flour together in a 6-quart pot. Whisk in vinegar, turmeric, mustard powder, and celery seed until a smooth paste forms. Add cucumbers and onions and fill with enough water to cover. Stir and bring to a boil. Cook, stirring frequently, until thickened, about 10 minutes.

5 . Stage

Transfer cucumbers, onions, and pickling liquid to the hot sterilized jars, filling to within 1/2 inch of the top. Run a clean knife or thin spatula around the insides of the jars to remove any air bubbles. Wipe rims with a moist paper towel to remove any residue. Top with lids and screw rings on tightly.

6 . Stage

Place a rack in the bottom of a large stockpot and fill halfway with water. Bring to a boil and lower jars 2 inches apart into the boiling water using a holder. Pour in more boiling water to cover jars by at least 1 inch. Bring to a rolling boil, cover, and process for 10 minutes.

7 . Stage

Remove the jars from the stockpot and let rest, several inches apart, for 12 to 24 hours. Press the center of each lid with a finger to ensure the lid does not move up or down. Remove the rings for storage and store in a cool, dark area.