This million-dollar pickles recipe will wow your family and friends when you pull this crunchy condiment out of your fridge. They're worth the wait.
Place cucumbers, onions, and pickling spice in a large bowl; add water. Cover the bowl; set aside for 6 to 8 hours, or overnight.
Inspect 6 pint-sized jars for cracks and rings for rust, discarding any defective ones. Immerse in simmering water until pickles are ready. Wash new, unused lids and rings in warm, soapy water.
Drain liquid from cucumber mixture; transfer cucumbers, onions, and any pickling spice to a large saucepan. Add sugar, turmeric, and celery seeds; pour in vinegar, adjusting the amount if needed to cover everything. Bring to a boil.
Pack pickles into hot, sterilized jars, filling to within ¼ inch of tops. Run a clean knife or thin spatula around insides of 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. Cool to room temperature, then store in the refrigerator.