You need a piping bag and an open star tip nozzle to pipe out this buttery dough. I like to use a disposable piping bag. Just snip off the end and slide the piping tip right down so that the tip pokes out of the hole. Fold the top edge of the bag down and spoon in about half the dough. Don’t overfill the bag.  Twist the bag just above the dough and keep twisting until the dough is pushed right into the tip. Continue to twist the bag as you pipe the cookies. Keep one hand at the top near the twisted bag and apply pressure evenly to push the dough out. Use the other hand to guide and steady. I keep the bag at almost right angles to the baking sheet.