These cutters are used the same way any cookie cutter is used. I use this recipe from King Arthur Flour for my batch of cookies and they were delicious. You can butter the cutter if your dough is sticky, but I used them as is without a problem.

I printed mine with 0.3 mm layers and with 4 perimeters. I also used the ironing option to fuse together the last perimeters since they're the one touching the dough.

Happy cooking