Homemade Strawberry Jam

We finally, for the first time ever, got a usable crop of strawberries. I have already made crisp with it. Now we have enough to make strawberry jam. We had about 7 cups of berries. We cleaned and halved them. We put them in a pot with 1/2 tsp. of margarine and a package of canning gel, we like the Kroger brand. Bring to a rolling boil, then add 7 cups of sugar all  at once. Bring to a boil again. Stir and skim (push the foam to the sides) for 5 min. Then it is ready to put in the clean jars. Put the lids on and tun upside down for a few minutes to help the lid seal.