In a mixing bowl, place butter and both brown and white sugar. Beat together until butter is thoroughly combined and texture is light and fluffy.
Add the eggs and vanilla to the bowl and beat again until blended.
Then, add all of the dry ingredients, except the halloween candy. We want to save those for after the dough is combined.
Mix with the hand mixer on medium speed until flour is mixed in; dough will be chunky.
Chop any leftover halloween candy you have and place it into the bowl with the dough. Fold in with a rubber spatula.
Use a medium cookie scoop to scoop batter onto a parchment paper lined cookie sheet (or greased baking sheet) and make small cookie dough balls. After the cookies are rolled, gently press a few more candy pieces into the top of each cookie.
Bake for 9-11 minutes or until the edges are golden brown. Be careful to not over bake.
After the cookies come out of the oven, transfer onto a wire rack to allow them to cool. Optional: add more leftover candy to the tops of the baked cookies - gently pressing it into each cookie while they’re still warm. Enjoy!