1 qt. strawberries
2 cups sugar
1/2 box Certo crystals

Crush berries and mix with Certo in a 3-quart microwave-safe dish.
Cook on high, covered, for 6 minutes until jam is boiled.
Stir. Add sugar and stir well.
Cook on high for 5 minutes or until jam boils and bubbles for at least 1 minute.
Stir and ladle into sterilized jars.