Preheat oven to 350 degrees F and prep a 9 x 13 glass pan with cooking spray.
Place the flour, baking powder, and salt in a small bowl and whisk to combine. Set aside.
In another bowl, combine chopped oreos, peanut butter cups, and sprinkles. Stir to combine and set aside.
In your stand mixer, cream together the butter, brown sugar, and granulated sugar.
Then, beat in the eggs, one at a time.
Mix in the vanilla and peanut butter until smooth.
Slowly add in the dry ingredients and mix until just combined.
Hand mix in the chopped golden oreos, peanut butter cups, and sprinkles! Don’t over mix.
Pour mixture into the prepared pan. Note: Strategically place the mixture into the greased pan. It’s a very thick batter which makes it harder to spread!
In the preheated oven about 25 - 30 minutes. A toothpick should come out almost clean. You don’t want to over bake!
Let cool before serving!
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