roll out dough ,
half at a time ,1/8 inch thick between 2 sheets of plastic wrap. remove top sheet of plastic ( if dough gets too soft and sticks to plastic, refrigerate until firm). cut dough into 1 1/2 inch squares. place half the squares 2 inches apart on prepared cookie sheets. place about 1/2 tsp jam in center of each square; top with another square. using fork, press edges of squares together to seal, then pierce center of each square. bake for 10 minutes or just until edges are browned. remove to wire racks to cool.