If you prefer not to use eggs, then you can always substitute the eggs with an egg replacer, such as Ener-G or ground flax seeds. One tablespoon of ground flaxseeds mixed with three tablespoons of water is equal to one egg. [4] X Research source

Keep the hand mixer or stand mixer on a low to medium speed as you do this to prevent the dry ingredients from flying out.

If you do not have parchment paper, then spray the pan with some non-stick cooking spray. You can also use a small amount of butter or oil if you do not have non-stick cooking spray.

If you want to get more uniform cookies, then you can also flatten all of your dough on a clean surface and then cut out disks of dough with a biscuit cutter or cookie cutter. If you do this, then you will need to sprinkle some flour onto the surface and onto the dough to help keep it from sticking. [8] X Research source

To flatten the cookie dough balls, take a clean drinking glass and press it into one of the cookies to flatten it out. Then, peel off the cookie and press the stick glass bottom into the dish of granulated sugar. Press the sugar onto the top of the cookie you just flattened. Repeat this process for each of the cookies.

Make sure that the butter is at room temperature or the frosting will be hard to mix. You can also use shortening as a substitute for part or all of the butter if you prefer. [12] X Research source

You can turn the speed up a bit after the ingredients are well combined, but you may still want to keep it on the low side to prevent splattering.

Keep mixing the ingredients until the frosting is fluffy. You may want to stop once or twice to scrape down the sides of the bowl. If you want to add a different flavor to your frosting, just substitute a different extract instead of vanilla. For example, you could use almond extract, chocolate extract, or caramel extract if you prefer.

Try making the cookies first, setting them on the rack to cool, and then starting on the frosting. By the time you finish the frosting, the cookies should be cool.

Don’t worry about spreading out the frosting or patting it down. Just scoop the frosting balls onto the cookies.

Do this for all of your cookies until they are all sandwiched together.

If you do not plan to serve the cookies right away, then you might want to place them in the fridge to help keep the frosting from melting.