Chop graham crackers and walnuts in a food processor right up until medium to good crumbs kind. Combine in a bowl with cinnamon and melted butter. Press crumbs into the bottom of foil muffin wrappers put within a muffin pan or into the bottom of the 9″ spring form pan if you favor 1 cake. Tip: Foil wrappers are better than paper to prevent any pr