There are no pips in cranberries. For a very basic sauce use:-
1 cup sugar
1 cup water
4 cups fresh cranberries
Heat in saucepan until cranberries burst and the sugar is dissolved. You can add loads of other things. Orange peel, nuts, raisins, other berries, booze etc. Cranberries have lots of pectin and will thicken on cooling.
Luvverly.