To understand jam making takes experience. Whatever you capture in the jar will be delicious. If the jam turns out a bit loose, call it sirop and pour it, warm, over waffles.

1. Sterilize jars, lids and metal bands 10 minutes. Prepare a water-bath canner. Crush the berries completely. Line a strainer with double layers of cheesecloth and place in a large bowl. Put the ...