Place the pickling solution ingredients into a medium saucepan and heat on medium, uncovered. Stir until the sugar and salt have dissolved and the liquid has come to a gentle boil. Take off the heat and let it cool for 30 minutes.
Prepare the vegetables. Put the vegetables in a large bowl and use your hands to toss through.
Put the vegetables in the pickling jar. Pour the pickling solution over the top and seal.