My Great-Grandma Shupe used to make this, it was her favorite and is now one of mine. (can also use cherry, raspberry, strawberry or blackberry)
1 box of vanilla wafers - crushed - pour half into 9x13 pan, set the rest aside.
12 oz. cool whip
1 lg softened cream cheese
1/4 c. milk
1/2 c. powdered sugar
Spread half of this mixture onto the crushed wafers in the pan.
1 can of blueberry pie filling then spread the remaining cool whip mixture
top with the remaining crushed wafers
Chill and serve.