Preheat the oven to 350°F and line a baking sheet with parchment paper.

In a large bowl, combine all the cookie ingredients with a spoon, being careful not to over-mix.

Use a medium-sized cookie scoop to scoop dough onto the prepared cookie sheet, spacing them 2 inches apart. Do not flatten the cookies.

Bake for 15 minutes or until cooked through. You'll know they're done when they bounce back slightly when touched.

Once they're out of the oven, allow them to cool on the baking sheet for 5 minutes before transferring the cookies to a cooling rack.

For the frosting, use a medium-sized bowl to combine all ingredients. Mix on medium speed with a mixer for 6-8 minutes or until the frosting is creamy and fluffy.

Spoon a dollop of the frosting onto each cooled cookie, then use the back of the spoon to spread it evenly.

To finish it off, sprinkle with a dash of pumpkin spice mix!