Mix butter, flour and nuts ... and then add Cool Whip and mix again. Spoon over ... cooled and spread blueberry pie filling on last. (Easier ... necessary.) Chill before serving.
Mix cake mix as directed ... large can of blueberry pie filling and dump on ... small container of Cool Whip and 1/2 box of confectioners' ... 3 hours. Serve cold.
Combine graham crackers, 1/4 cup ... 15-20 minutes. Spoon blueberry filling over top and refrigerate until set. Spread Cool Whip on top before serving.