Gather the ingredients.
Line 1-2 baking sheets with Parchment Paper or baking mats; set aside.
Using a Stand Mixer, fitted with the Paddle Attachment, cream the Softened Butter, Powdered Sugar and Vanilla on the Medium setting (#4) for about 5 minutes, scraping down the inside of the bowl as needed; the mixture should be light in color and whipped.
Next, lower the speed of the Mixer to the lowest setting and gradually add the GF Flour, 1/2 cup at a time; Dough will be soft and smooth.
Place a large Star tip into a piping bag (or large plastic resealable bag) and transfer the dough to the piping bag.
Pipe the dough onto the prepared cookie sheets in Rosette or Circle designs/shapes. The dough does not spread very much, if at all, so you can pipe a lot of cookies per sheet - I usually pipe 20 - 2" cookies per sheet.
Sprinkle each cookie with sprinkles/colored sugar, if desired.
Next, place the cookie sheets into the refrigerator for 30-40 minutes to chill the dough - this helps them maintain their shape while cooking.
Meanwhile, preheat the oven to 300 degrees.
Once the cookies are finished chilling, bake them for 18-20 minutes, or until the edges turn a light, golden brown.
Cool the cookies for about 5 minutes on the cookie sheets before transferring them to wire cooling racks to cool completely.
Enjoy with a hot cup of cocoa, tea or coffee...or a glass of cold milk ;)