Strawberry-Rhubarb Jam

1 3/4 Cups fruit (about 1 pint of strawberries and 1/2 lb rhubarb)
4 cups sugar
1 tablespoon lemon juice
1/2 bottle of Certo Liquid Fruit Pectin

Thoroughly crush stawberries one layer at a time
Measure 1 1/4 Cups into a large bowl
Finely grind rhubarb
Measure 1/2 Cup and combine with strawberries
Add sugar and mix well
Let stand for 10 minutes
Add lemon juice and Certo. Continue stirring for 3 minutes
Ladle quickly into jars and cover at once with tight lids
Let stand at room temperature until set (may take 24 hours)
Then store in freezer. Store in fridge if used within 2-3 weeks