Combine cream cheese, butter, flour, vanilla, and granulated sugar in mixing bowl until smooth. Or pulse in food processor.
Roll into ball and cover with plastic wrap. Refrigerate for 2 hours or up to overnight. Dough will be very soft.
Preheat oven to 350˚F.
Sprinkle flour on work surface.
Divide dough in half. Place one half back into refrigerator.
Roll out first half to ¼” thickness.
Cut into about 12 squares each roughly 2 ½“ square. Re-form the dough and re-roll as needed.
Place squares on lined jelly roll pan.
Place a dollop of jam in the center of each square.
Fold over 2 corners to meet in middle.
Repeat for remaining dough and jam using as many flavors of jam or preserves as you wish.
Re-roll any spare dough into new squares.
Bake each sheet or cookies for 15-18 minutes.
Allow cookies to cool in pan for 5 minutes before removing to cooling to cool completely for 1 hour.
Optional: sprinkle lightly with powdered sugar in sieve before serving.
