Circle B Kitchen
6 cups mulberries
3.5 Tbsp lemon juice
7 Tbsp pectin
5 cups sugar
Cook mulberries over medium heat for 10 min to loosen juice. Smash or run through a food mill. Add the berries, lemon juice and pectin to a pot over high heat and bring to a full rolling boil that can't be stirred down.
Add all of the sugar and return to a full boil. Boil hard for 1 minute stirring constantly.
Remove from heat and skim any foam, if necessary.
Ladle into sanitized jars and process according to your altitude. At sea level we hard boiled the jars for 10 min.