Our next blueberry recipe in our series is a riff on our favorite childhood Southern treat, Ooey Gooey Butter Bars. We add blueberry jam to take these bars from everyday to a special summer dessert. We promise you won't have any leftovers.
Preheat oven to 350 degrees F. Mix together cake mix, butter, eggs, and water until mixture forms a dough. Gently press dough into the bottom of a greased 13x9" cake pan. Spread a thin layer of jam over the top of the dough.
With a hand or stand mixer, beat cream cheese until smooth. Add powdered sugar, eggs, and vanilla, and mix again until smooth. Pour over dough layer. Dot with dollops of blueberry jam and then gently swirl. Bake for 25 to 25 minutes or until top layer starts to brown. Cool completely before serving and store in the refrigerator. Bars are best served cold.