Remove 1 cup of strawberries from the 3 cups and set aside. Place 2 cups of frozen strawberries in a medium to large pot with ½ cup of water and 4 tsp powdered pectin. Stir. Turn the heat on high and bring to a boil that cannot be stirred down. This takes 7-10 minutes.
Add sugar and continue to cook on high, stirring frequently. Bring to a boil that cannot be stirred down and hold the boil for 1 minute. Temp should be around 220-223°F/10-106℃
Turn off the heat and add the remaining cup of strawberries. Break them up a little and stir. Ladle into jars or containers and refrigerate for at least 4 hours. Store in the refrigerator. Enjoy!