Preheat the over to 350 degrees.

With a mixer, cream together the butter and sugars until light and fluffy, about 2 minutes. Add egg and vanilla and beat until well mixed.

In a medium bowl, whisk together flour, baking soda, and salt. With the mixer on low, slowly add the dry ingredients into wet ingredients until just combined.

With a wooden spoon or spatula, gently fold in Oreo pieces.

Scoop dough into small balls, and place onto a cookie sheet lined with parchment paper, about 1-2″ apart.

Bake for 8-10 minutes or until the edges JUST start to brown (watch them!). Let cool on baking sheet for a few minutes, then transfer to a cooling rack to cool completely.