On a smooth surface such as a sheet of plastic wrap or a silicone baking mat, shape the dough into a 16-inch log. Slice as many 1/3-inch thick slices as you desire to immediately bake.
Transfer the slices to a sheet of parchment paper. For crunchy cookies, (based on a 1200 watt microwave) bake at Level 5 according to the number of cookies you are baking: 1 cookie = 60 seconds/1 minute; 2 cookies = 1 minute 5 seconds; 3 cookies = 70 seconds/1 min. 10 seconds, 5 cookies = 80 seconds/1 min. + 20 seconds, etc.
The longer you bake them, the crunchier they will turn out. For softer cookies similar to shortbread, bake at a lower temperature like Level 4 and/or use butter in place of shortening.
https://glutenfreerecipebox.com/crunchy-gluten-free-peanut-butter-cookies-in-the-microwave/