In a stand mixer add eggs and whisk on medium speed for 3 minutes until eggs are light yellow and frothy. Add sugar, and continue whisking for 1 minute.

In a separate bowl add remaining ingredients (except Oreos, chocolate chips & peanut butter chips) and mix well. Add dry ingredients to mixing bowl and mix for about 1 minute.

Add the remaining ingredients, and continue whisking for 1 more minute. Add chocolate chips and peanut butter chips and mix just a few seconds until they are incorporated into the mixture.

Pour batter into a greased 8x8 baking dish. Slowly push down each of the Oreos into batter. Bake at 350° for 60 minutes or until toothpick inserted into brownies comes out clean.

Remove from heat and allow to cool. For best results let cool at least one hour to allow brownies to achieve a nice chewy texture.

Enjoy!