I've bought pickled onions in the store many times. But a small jar cost 3.00 So......... Basic recipe. Whole small onions. Pearl onions are the best. 1 tsp pickling spice 1/2 tsp dill seed fresh dill 1/4 tsp Alum Above items go into a quart jar. For the brine I used 2 cups cider vinegar with 1 tbs pickling salt. Once the brine got boiling. I added 2 tbs of Balsamic vinegar into the jar. For color. Then topped of with the brine. Vac sealed and resting.