Wash and hull 2 pounds of strawberries
Crush the strawberries
Combine the crushed strawberries with 1/4 cup lemon juice in a large pot
Bring the mixture to a boil over medium-high heat
Stir in 1 package powdered pectin
Add 4 cups sugar all at once
Return to a full rolling boil
Boil for 1 minute, stirring constantly
Remove from heat and skim off foam
Pour the jelly into sterilized jars
Seal the jars with lids and rings
Process the jars in a boiling water bath if desired
Let the jars cool completely
Store the sealed jelly in a cool, dark place