01 -
Combine all-purpose flour, cornstarch, baking soda, baking powder, and salt in a medium bowl. Whisk to distribute evenly.
02 -
Beat room temperature butter and granulated sugar in a large bowl until light and fluffy, approximately 3-4 minutes.
03 -
Mix in room temperature egg and vanilla extract until well combined. Add peanut butter and beat until smooth.
04 -
Gradually add dry ingredient mixture to wet ingredients, mixing until just combined. Avoid overmixing.
05 -
Stir in purple or violet gel food coloring until desired color is achieved. Use saturated coloring to overcome peanut butter's brown base.
06 -
Cover dough and refrigerate for at least 30 minutes to firm up for easier handling.
07 -
Preheat oven to 350°F and line baking sheets with parchment paper. Unwrap chocolate pieces and set aside.
08 -
Roll chilled dough into 1-inch balls. Roll each ball in purple sanding sugar or Halloween sprinkles until completely coated.
09 -
Place coated dough balls on prepared baking sheets, spacing 2 inches apart. Bake for 8-10 minutes until edges are set.
10 -
Immediately after removing from oven, gently press one Hershey's Kiss or Hug into center of each warm cookie.
11 -
Place cookie sheet in freezer for 10 minutes to quickly set the chocolate pieces.
12 -
Transfer cookies to wire cooling rack and allow to cool completely before storing.