My local Burger King sells them at $1 a piece.
These are a bit of a weird idea to me as they're basically a cookie within a cookie. The display says they're Otis Spunkmeyer, but I found the cookie a bit harder than I remember the typical Otis Spunkmeyer being. It's possible that the cookie had been sitting in the display for a while though. It was more a chewy combination of hard and soft and was not warm at all. While there were sizable pieces of Oreos inside the cookie, I'm not sure I would call it "chunky," as the feel of both cookies are similar enough to mesh.
While Burger King's Chunky Cookie with Oreo Pieces are an interesting idea, the quality was pretty standard and I found myself thinking that I'd rather just eat a plain Oreo.
Nutritional Info - Burger King Chunky Cookie made with Oreo Pieces - two cookies (85g)
Calories - 400 (from Fat -16 0)
Fat - 18g (Saturated Fat - 7g)
Sodium - 340mg
Carbs - 54g (Sugar - 32g)
Protein - 4g