Christmas Jam (Pectin Version) - cooking recipe

Ingredients

2 (20 ounce) packages frozen strawberries or 2 1/2 quarts fresh strawberries, hulled
1 lb cranberries, fresh or frozen
5 lbs granulated sugar
2 (3 ounce) envelopes liquid fruit pectin

Preparation

Using a food processor, grind up the berries until smooth.
Place in a large stockpot with sugar and pectin and stir to coat.
Bring to a full, rolling boil and keep it boiling for 1 minute (use a timer) stirring the entire time.
Remove from heat immediately and let cool 5 minutes (use the timer again).
Skim off any foam that has risen to the top.
Pour into clean, hot, sterilized canning jars, leaving 1/4\" space at the top of each jar.
Put on caps and process 15 minutes in a hot water canning bath.
Remove from canning bath with sterile canning tongs and let cool upside down overnight, making sure each jar has properly sealed.