Prepare a heavy syrup. Wash cranberries and remove stems.
Carefully but quickly add cranberries to boiling syrup and boil 3 minutes.
Fill hot jars with fruit and cover with boiling syrup, leaving 1/2-inch headspace.
Remove air bubbles, readjust headspace if needed, wipe rims, apply lids, and process in a boiling-water canner according to the NCHFP schedule.