Low Sugar Mulberry Jam

I was asked for a recipe for low sugar mulberry jam. Since I didn't have such a recipe. I decided to do some experimenting. Actually all I did was buy a box of no sugar needed Sure-Jell and followed the instructions for low sugar raspberry jam, but replaced the raspberries with mulberries.



It set just fine and tasted great. May be I should use low sugar pectin more often.

5 cups crushed mulberries
4 cups sugar (divided)
1 package low sugar powdered pectin

Mix 1/4 cup of the sugar with the powdered pectin. Stir the pectin/sugar mix into the berries. Bring to rolling boil over high heat. Add remaining sugar, return to boil, and boil for one minute, stirring constantly. Remove from heat. Skim foam, if necessary. Fill hot jars, leaving 1/4 inch headspace. Add lids and process 10 minutes in a water bath.

High altitude instructions
1,001 - 3,000 feet : increase processing time by 5 minutes
3,001 - 6,000 feet : increase processing time by 10 minutes
6,001 - 8,000 feet : increase processing time by 15 minutes
8,001 - 10,000 feet : increase processing time by 20 minutes