Small Batch Blackberry Jam - cooking recipe

Ingredients

1 lb blackberry (around 3 cups)
1 1/4 cups sugar

Preparation

In a non-reactive pan, mash the blackberries with a potato masher. Add the sugar and heat the contents over medium heat, stirring gently, until the sugar is dissolved. Raise the heat to medium-high and boil the mixture until a drop mounds in a chilled dish (this took around 10 minutes for me).
Pour the jam into a jar and cap the jar tightly. Store in refrigerator. This jam should keep for several weeks.