Cream the sugar and vegan buttery spread until light and fluffy. Add the unsweetened applesauce and vanilla extract and continue to mix.
Add the salt and half of the gluten free flour blend. Mix on low speed. Stop the mixer and add the rest of the gluten free flour blend. Mix until combined. The texture of the dough should resemble play-doh.
Divide the dough into two discs. Wrap each disc in plastic wrap and refrigerate for at least two hours. If you are in a hurry, you can chill the dough in the freezer for 45 minutes.
Preheat oven to 350 degrees F. Line a cookie sheet with parchment paper. Spread waxed paper on the counter or tabletop and sprinkle with gluten free flour. Unwrap one of the discs and sprinkle liberally with gluten free flour as well. Dust the rolling pin with flour. Roll the dough to about ¼ of an inch thickness. If the dough is too crumbly, add a little water. If the dough is sticking to the rolling pin, add more flour to the rolling pin and the surface of the dough.
Cut out your cookies into your desired shapes. I used an acorn cookie cutter and a leaf cookie cutter. Place them on the cookie sheet. Bake at 350 degrees F for about 9 minutes. The cookies should be just slightly golden on the edges. Baking time will vary depending on the size of your cookie cutters.
Allow cookies to cool for a couple of minutes on the pan, then move to wire racks to cool completely.
Repeat steps 5-9 with the remaining dough.