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Make this homemade blackberry jam infused with rosemary and sweetened with honey. Plus, get the recipes for 4 other tasty preserves!
5 from 2 votes

Honey and Rosemary Blackberry Jam

A delicious blackberry spread with a hint of rosemary that's tasty on toast, served with brie or paired with pork.

Course Appetizer, Breakfast
Total Time 45 minutes
Servings 8 jars


  • 10 cups fresh blackberries washed and dried thoroughly
  • 1 package 40 g pectin crystals for lower-sugar recipes
  • ¼  cup sugar
  • 2 cups honey creamed, not liquid
  • 2 tablespoons fresh lemon juice
  • 2 tablespoons chopped fresh rosemary
  • 8 sterilized jars about 250 ml or 8 oz. with lids and screw bands


  1. Begin by adding 1 cup of blackberries to a large heavy pot. Crush with a potato masher and repeat the process until all 10 cups are used up.
  2. Stir in pectin and sugar, and bring to a full boil over medium heat, stirring often.
  3. While it's cooking, prepare the jars by filling each one with boiling water (I put mine in a large pot in a clean sink). Place the lids and screw bands in a saucepan, cover with water, and simmer over low heat on the stove.

  4. Add honey and lemon juice, and return to a full boil, stirring constantly.
  5. Turn heat off and stir in rosemary.
  6. Just before filling each jar, dump the water out, dry outside with a clean cloth and laddle the hot jam mixture in until it's ¼" from the top (be careful not to burn yourself!). Wipe the jar rim with a clean towel and place a lid from the saucepan over top. Screw a band on until just tight. Quickly repeat the process until all of the jam is used up.
  7. Place jars in a boiling water bath (water should cover top of lids) for 10 to 15 minutes, remove and rest on the counter undisturbed until cooled.
  8. Sealed jars will have a concave lid and won't spring up when you press down. Unsealed jars can be topped with hot wax to form a seal or be stored in the fridge for up to 3 months.
  9. Store sealed jars in a dark cool place and always refrigerate jam after it's been opened.