in a large saucepan, combine apples, rhubarb, sugar, water, lemon juice and zest. Using medium-high heat bring to a boil, stirring constantly. Gently boil, stirring often, for 15 minutes. Lower heat if necessary.
After 15 minutes, add cranberries, cinnamon, and nutmeg. Bring to a gentle boil again, stirring often, until thick enough to mound on a spoon (about 15 minutes).
At this point, the chutney is ready to can. Begin by boiling a large pot of fresh, clean water (large enough that water will completely cover your jars).
Fill jars with hot chutney, leaving 1/2 inch head space. Remove air bubbles and adjust head space if necessary. Wipe rim with fresh, slightly dampened paper towel.
Center the lid on the jar and screw band down until resistance is met. Increase to fingertip-tight. The jars are now ready for the canner, which should be at a rolling boil (212F).
Place jars in the canner, making sure each jar is submerged completely in the water. Bring to a boil again and cover, processing for 10 minutes. Your time does not start until the water is at a rolling boil again.
After 10 minutes, remove the pot lid and wait 5 minutes. Then remove jars using a jar lifter, and place on a flat level surface. Do not touch for 24 hours. All jar lids should be concave after 24 hours, with no give.
If any of the lids can pop up and down, the canning did not take. You can try to process again, or simply place the chutney in the fridge and use within a week or two.