In honor of TODAY, being National Delaware Day; plus, July, being National Blueberry Month and National Picnic Month; not to mention Wednesday, being National Give Something Away Day; here’s Mom’s copycat recipe for…

DELAWARE BLUEBERRY BUCKLE
By Gloria Pitzer, as seen in… Gloria Pitzer’s Secret Recipes Newsletter (Secret RecipesTM, St. Clair, MI; July-Aug. 1988, Issue 133; p. 2). As always, I’m asking only for proper credit if you care to re-share it.
[Delaware] entered the union as [the] 1st of [the] original 13 colonies and leads the U.S. in [the] production of blueberries.
INGREDIENTS:
A 1-layer-size box [like Jiffy] of yellow cake mix
21-oz can blueberry pie filling
12-oz tub Cool Whip, thawed
INSTRUCTIONS:
Prepare… cake mix exactly as box directs, baking it in a 9-inch square or round pan. When cooled, crumble cake and spread evenly over the bottom of a greased 9”x12”x2” baking dish. Drop by rounded spoonful, over cake pieces,… [the] pie filling. Cover in… Cool Whip. Keep chilled until time to serve. Serves 6 to 8 nicely.

See also…
