Wash the blackberries and place in a large stock pot. Slice the apple into quarters, removing the core. Grate the apples, leaving the skin attached. Add to pot. Add honey and lemon juice Heat on high until the mixture begins to boil, reduce and simmer 15 minutes. Use a potato masher or an immersion blender to smash your blackberries until you reach a smooth consistency free of chunks. Reduce to medium-low heat and simmer for an additional 15-45 minutes. You can judge this by the consistency desired. Reminder - it will thicken when it cools. Place in freezer safe containers, or can using the water bath process for 10 minutes. It will stay good in the freezer for 6 months, and canned for 12 months.