Gather ingredients. A plastic bag works great to crush cookies and to store unused cookie pieces in freezer.
Don't over crush too finely. Larger chunks work and taste better.
Recipe calls for Buttermilk but I use substitute which is 1 Tbsp Lemon Juice and the rest milk to equal 1 cup.
Add milk to lemon juice to equal a cup as substitute for Buttermilk.
Mix milk and pudding mix...
Spoon in Cool Whip (I use the lite variety).
Gently fold in cool whip. (Your bowl will hold still because your other hand won't be filming with an iPhone. :) )
Just before serving, line serving dishes with coarse crushed cookies.
Spoon pudding mix on top.
Garnish with crumbs or even a whole cookie. Serve immediately to keep cookies crunchy