To crush cookies, place them in a resealable food-storage plastic bag; seal bag and finely crush with rolling pin or meat mallet. (Or, use food processor to crush them.) The cookies lend flavor and texture to the baked brownies but are not visible in the brownies.
These are very moist fudgy brownies. They may seem soft when they come out of the oven, but when they are completely cooled, they will cut nicely.
Extra special when served with a scoop of softened caramel ice cream or a dollop of sweetened whipped cream on top.