Cake Batter Oreo Cookies

The ultimate sugar rush! Soft-baked and ultra chewy chocolate chip cookies flavored with cake batter and studded with Oreo cookies.

1 and 1/4 cups (156g) all-purpose flour (spooned & leveled)
1 and 1/4 cups (190g) yellow or vanilla boxed cake mix (I typically use vanilla cake mix)
1/2 teaspoon baking soda
1/2 teaspoon salt
3/4 cup (12 Tbsp; 170g) unsalted butter, softened to room temperature
1/2 cup (100g) granulated sugar
1/2 cup (100g) packed light brown sugar
1 egg, at room temperature
1 and 1/2 teaspoons pure vanilla extract
2/3 cup (180g) semi-sweet chocolate chips
1/2 cup (80g) sprinkles
1 and 1/4 cups chopped Oreos (110g, about 10 whole Oreos)*

In a large bowl, sift together flour, cake mix, baking soda, and salt. Set aside.
Using a hand mixer or a stand mixer fitted with paddle attachment, cream the softened butter and both sugars together on medium speed until smooth. Add the egg and mix on high until combined, about 1 minute. Scrape down the sides and bottom of the bowl as needed. Add the vanilla and beat on high until combined. Add the flour mixture to the wet