Prepare the strawberries. Weight them out. Add equal amount of sugar by weight.
Allow the berries to macerate in the fridge for at least 1 hour.
Remove the zest from 1 orange
Juice enough blood oranges to get to ¼ cup of juice. Add to the strawberries.
Heat a large/wide frying pan over high heat.
Pour in the fruit mixture. Add 1 teaspoon of pectin
Place a plate into the freezer.
Bring to a boil. Continually stirring until the jam thickens about 4-5 minutes. Remove from heat.
Place a little bit of jam onto the plate in your freezer. Place back in the freezer, wait 1 minute. If the jam does not move on the plate, then it's done. If it seems too runny still cook it a bit longer and try again. You can add 1 more teaspoon of pectin if you think it needs it.
Store the jam in the fridge or freezer once it has cooled down to room temperature.