Berry Rhubarb Preserves

I know it's been forever since I posted here but so much has been going on that it would take forever to share all. You can stop by my Art blog as well though to see some of the latest happenings.
While still in Oregon I was lucky enough to be given lots of rhubarb and harvest enough raspberries from my patch to make some preserves. I had some blueberries on hand as well so I combined 4 cups each of the two types of berries along with 8 cups of chopped rhubarb. All those stringy looking pieces among the berries are actually grated lemon rind, about 2 tablespoons. I also added the juice of half the lemon.
Preserves are different than jam in that you only add half the amount of sugar per cup of fruit. So I added 8 cups of sugar and then brought the mixture to a boil, stirring frequently. Be sure to put this in a large deep pot as the mixture does bubble and splash so you can be burned. I lowered the temp to allow the mixture to boil slowly, stirring frequently to make sure it doesn't scorch. After the mixture has thickened a bit, about 30 minutes of cooking I ladle it into sterilized jars, clean the rims, add the lids and and rings and tighten them down. I water bath process for about 10 minutes. Your yield will depend on the amount of fruit you use so I always have extra jars sterilized just in case. This is a good way to combine end of season fruits, make your sugar go farther, and create a delicious topping for toast, pancakes or waffles, or ice cream.