Instructions

1. Preheat the oven to 350° F. Prepare the 9×13 baking pan with nonstick baking spray, or line with parchment paper. Set aside.
2. In a microwave-safe bowl, melt 1-1/2 cups chocolate chips until smooth and creamy. You will want to microwave it in 30 second increments and stirring it between sessions to avoid burning it.
3. In a medium bowl, combine the sugar, vanilla, and coffee granules, and melted chocolate. Stir to combine well.
4. Cut the butter, and melt in a microwave-safe bowl, just as you did for the chocolate. Add to the medium bowl, and stir well.
5. In a small bowl, whisk the eggs together for a full minute, and then stir into the chocolate mixture.
6. Finally, add in the all-purpose flour, cocoa powder and baking powder and combine well until the mixture is thoroughly incorporated and smooth.
7. Gently, fold in the last 1/2 cup of chocolate chips. Spread 1/2 of the mixture into the base of the pan. If needed, you can use more of the batter to fill the base of the pan.
8. Place Oreos flat on top of the brownie batter into a single layer.
9. Next, move on to the cheesecake filling.
10. In a large bowl, beat the cream cheese until it is smooth and creamy. It took me about a minute to make sure there are no clumps remaining. 
11. Then, you will add in the sugar and combine well. Next, add in the egg and vanilla extract and mix well. Add dye to make it orange. I used red and yellow until it became the same hue as the insides of the Halloween Oreos. Then, scoop it on top of the Oreos/brownie batter and spread it out as much into an even layer.
12. Scoop the brownie batter onto the top of the cheesecake filling in a random pattern. You can spread it around a bit, but you won’t want to cover the cream cheese completely because it looks really fun to have the orange peeking out on the top.
13. Finally, crush the remaining Oreos, and spread onto the top of the pan.
14. Bake for about 25-30 minutes until the brownies are set, and the toothpick test comes out clean.
15. Allow to cool before cutting. Refrigerate the bars if you aren’t eating them right away.