01 -
Whisk together all-purpose flour, cornstarch, baking soda, baking powder, and fine sea salt in a large bowl until evenly combined. Set aside.
02 -
Using an electric mixer, cream softened unsalted butter and white sugar for 2 minutes until light and fluffy. Incorporate the egg fully.
03 -
Mix in smooth peanut butter and vanilla extract thoroughly, scraping down sides as necessary.
04 -
Gradually add the dry mixture to the wet ingredients and stir until dough forms evenly. Incorporate purple gel food coloring incrementally until desired hue is reached, finishing mixing by hand for uniform color.
05 -
Using a 1-tablespoon scoop, portion dough into mounds on a parchment-lined sheet tray, spacing close but not touching. Cover with plastic wrap and refrigerate for a minimum of 2 hours or overnight to firm up.
06 -
Preheat oven to 350°F (175°C) and line new sheet trays with parchment paper. Place sprinkles or sanding sugar into a small bowl for coating.
07 -
Roll chilled dough mounds into smooth balls, coat completely with sprinkles or sanding sugar, and place on prepared trays spaced 2 inches apart.
08 -
Bake for 9 to 11 minutes until cookies are puffed and slightly cracking on top, aiming to avoid overbaking for a soft interior.
09 -
Allow cookies to cool on the tray for 5 minutes. While warm, gently press a chocolate kiss or Hug candy into the center of each cookie until secured.
10 -
Transfer the cookie tray to the freezer for 10 minutes to prevent melting. Afterward, move cookies to a wire rack to finish cooling.