- 4 pints blueberries, washed and sorted
- 1 lemon
- 7 cups sugar
- 1/2 teaspoon butter
- 2 3-ounce pouches liquid pectin
Crush blueberries one layer at a time.
Measure 4 1/2 cups crushed berries into a large saucepot.
Add the juice of one lemon.
Add sugar all at one time.
Add butter.
Butter will help prevent foaming.
Add butter.
Butter will help prevent foaming.
Bring to full rolling boil, a boil that cannot be stirred down.
Add pectin, stirring constantly.
Return to a full boil and cook 1 minute, stirring constantly.
Remove from heat.
Skim off foam with a metal spoon.
Ladle into hot sterilized jars, leaving 1/8 inch head space.
Clean rims of jars and cap with 2-part lids.
Process in boiling water bath for 10 minutes.
Remove from canner and cool.