Wash and hull about 2 cups of fresh strawberries, then chop them into small pieces.

In a medium saucepan, combine strawberries with 1 cup of sugar and heat over medium, stirring until sugar dissolves, about 5 minutes.

Use a potato masher to mash the strawberries to your desired consistency and simmer for about 10 minutes, stirring occasionally.

Stir in 1 cup of chopped dark chocolate and 2 tablespoons of cocoa powder until melted and incorporated.

Mix in 2 tablespoons of lemon juice and 1 teaspoon of vanilla extract and simmer for another 5 minutes.

If desired, add pectin and continue cooking for an additional 3-5 minutes until you reach your preferred thickness.

Remove from heat, let cool for about 15 minutes, then transfer to a sterilized jar.