A long time family favorite that I obtained from my Grandama. I have added notes to her recipie based on what I have learned over the decades I have been making this pie. Only change I have made is that I use gluten free cookies.
16 graham crackers or chocolate wafers crushed (just over a cup of crushed crackers)
or
12 whole chocolate sandwich cookies (Oreos) crushed (I always leave the frosting on the cookies as it will help them stick together).
3 tbsp melted butter
1/2 cup sugar
Mix crackers/wafers/cookies with melted butter and sugar.