Raspberry Jam - cooking recipe

Ingredients

4 cups mashed raspberries
4 cups sugar

Preparation

Use a very large pot.
When the jam reaches a full rolling boil it will double in volume.
Heat mashed berries until they reach a full rolling boil.
Boil 2 minutes.
Add sugar.
Stir well.
Bring to a boil, stirring constantly, boil for 2 minutes.
Remove from heat.
Beat with rotary beater for 4 minutes
Pour in sterilized jars and seal.