Raspberry Lemonade Jam

I ask you, is there anything better than fresh raspberries from the garden? We've had a yucky summer this year. Only a few days getting over the coveted 70 degree mark. However, the raspberries have seemed to fair okay, so I'm making my famous raspberry lemonade jam. (I don't do just plain anything jam...Matt and I both like that little extra umph)

Raspberry Lemonade Jam

lemon grind from 3 lemons. (simmer in a pot for 5 minutes, then drain off liquid)

5 cups fresh or frozen raspberries

7 cups sugar

pectin

2 tbsp butter