1 cup cranberries (fresh, or thawed out frozen)
1 cup sugar
1/2 cup (that's one stick) butter
1 Tbsp. fresh-squeezed lemon juice
In a blender or food processor, puree the cranberries and sugar until fine. Add the butter and the lemon juice, and puree in the blender until the mix is smooth. Transfer the mix to a saucepan and hear until the butter is melted. Transfer to a serving dish and chill.