In a large mixing bowl mash strawberries. I find it that a potato masher works well. You could use a food processor if you want, just be careful not to make it a puree. You want it to have some strawberry chunks in the sauce.

Now get a large deep skillet and put it on medium heat.

Melt butter being careful not to burn.

Then add in the fruit pectin and mix well.

Add strawberries and bring to a boil for one minute.

Now pour in the sugar and mix well.

Cook 4 minutes stirring continuously.

The sauce will become thick with the strawberries being soft.

Remove from heat and pour the sauce into a container and store in the fridge.