Step 1

Wash and prepare the raspberries.

Step 2

In a medium saucepan, add the prepared raspberries, granulated sugar, butter, and fresh lemon juice. Mix over medium-low heat until sugar dissolves (about 5 min).

Step 3

Increase the heat and bring mixture to a boil. Stir and mash the raspberries frequently and continue to boil until the jam has thickened (or until it reaches a temperature of 220°F/104°C) This will take approximately 10-15 minutes.

Step 4

Pour the jam into a clean jar and allow to cool. Once cooled, cover and refrigerate.