R.I.P Miller.. this is an excellent recipe, so simple to throw together and healthy healthy healthy. I threw everything into the crockpot in the early evening, set the timer for 12 hours and left it to do it's stuff. Result.. a clear but well coloured stock that smelled so good that DH ( who could care less about stock) mentioned twice that it smelled REALLY good for just vegetables. I didn't have any parnip but threw in all the vegetables that needed using up before we go on holiday, carrots, onions, celery, green peppers, fresh thyme, parsley etc and wow am I PLEASED with this.. there's no added salt, no preservatives and it's fantistic as a base for vegetarian soups and for healthier frying of veggies. I filled the crockpot with veggies and water and got about 8-9 cups of stock which is brilliant. Please see my rating system: 5 stars for simplicity, taste and healthiness. Thanks!