Mason Jar Chicken Cordon Bleu | This isn't "canning" with hot pots of boiling water. Assembling ingredients in mason jars and cooking in the jars. Finished jars can go in the fridge for breakfast/ lunch/ dinner/ snacks that are handy for later. Reuse the containers over and over. Always have a fresh meal handy (these don't go in pantry or freezer, it's FRESH food).