Mix together melted butter, sugar, and vanilla by hand

Add each egg 1 at a time mixing after each, then mix in the Hershey's syrup

In separate bowl mix together Hershey's cocoa, flour, baking powder and salt, Gradually add to the wet ingredients, but be careful to not over mix

Now place a spoonful of brownie dough in bottom of tin, now if just making plain oreo, just place 1 oreo on top of brownie dough, if making the peanut butter ones, place 2teaspoons of peanut butter on top of 1 oreo, then place a second oreo on top of that, slightly press together, now place that on top of brownie dough

add another scoop of brownie dough on top of the oreo cookies, making sure it covers the sides, do not over fill

for plain oreo bake for 12-15 mins, for the double stuffed peanut butter ones for 18-23mins

I made 12 just plain oreo and 12 peanut butter oreo with this recipe, and it did use all cookies