01 -
Preheat oven to 350°F (175°C) and line a baking sheet with parchment paper or a silicone baking mat.
02 -
In a medium bowl, beat the softened butter, brown sugar, and granulated sugar together until light and fluffy.
03 -
Add egg and vanilla extract to the creamed mixture and mix until fully blended and smooth.
04 -
In a separate bowl, whisk together flour, cornstarch, baking soda, and salt. Gradually add the dry mixture to the wet ingredients and mix until a soft dough forms.
05 -
Fold in the semi-sweet chocolate chips along with the Halloween sprinkles until evenly distributed.
06 -
Using a large cookie scoop (approximately 1/4 cup per cookie), portion out the dough. Flatten each portion in your hand, place a Halloween Oreo in the center, and wrap the dough around the cookie, sealing the edges. Roll gently into a smooth ball.
07 -
Arrange stuffed cookies onto the prepared baking sheet, spacing apart. Press extra chocolate chips onto the tops if desired.
08 -
Bake in the preheated oven for 30-45 minutes, or until the cookies are golden on the edges and just set in the center. Cool on the baking sheet for 10 minutes, then transfer to a wire rack to cool completely.