4cupsmixed berries, thawedwe used strawberries, blackberries and blueberries
3cupssugar
1/2teaspoonbutter
4 1/2Tablespoonspectin
Instructions
Fill your water bath canner full of water and begin heating the water.
Have your jars, blands and lids ready and a wet paper towl as well.
Wash strawberries and cut the tops off and wash other berries.
Place the berries into a blender and turn them into a puree. You can leave them a little chunky if you prefer.
Place the berries into your Dutch pot (or a large pot that will allow the jam to rise when it boils).
Add the pectin and butter, stirring together on medium heat.
Stir the puree and once the mix hits a full rolling boil (a boil that when you stir, it won't stop), add the sugar.
Stir the jam to keep it from burning and sticking to the sides.
Get your clean jars prepared to fill. Place your baking sheet under it to keep your counter clean.
When the jam begins to boil and you can't stir it down, set a timer for 1 minute.
Allow the jam to boil, and stir constantly to prevent the bottom from burning.
After a minute, turn off the heat and skim off any foam that may be on top of the jam.
Using your canning funnel, fill the jars, leaving 1/4" headspace from the top.
Wipe the jar rim with a clean wet towel. (you can also use vinegar on the rim).
Place the seal and band on the jar and hand tighten.
The water in the water bath canner should be hot now. Place the jars into the hot water bath and allow to process for 10 minutes.
Once done, let the jars sit for 5 minutes in the water bath (that is turned off) and then remove the jars.
Place a towel down and place the processed jars on the towel and cover them.
Allow the jars to cool slowly for 12 to 24 hours.
Confirm the jars have sealed, date and label.
Remove the bands and store.
Video
Notes
Covering the jars with a towel helps the jam cool slowly. It also keeps any changes in temperature from causing a thermal shock to the jars (to prevent breaking).