Lemon Blueberry Dump Cake - so easy and SOOOO delicious! Blueberries, sugar, lemon zest, lemon cake mix and butter. Just dump everything in the pan and throw it in the oven. No mixing, no extra dirty dishes, no spoons, just one pan. Great for potlucks and cookouts. Serve warm with vanilla ice cream. There are NEVER any leftovers! SO good! #dessert #blueberries #lemon #cake

4 cups fresh blueberries

1 lemon, zested

1 box lemon cake mix

1/2 cup sugar

3/4 cup butter, cubed

Preheat oven to 350ºF. Lightly spray a 9x13-inch pan with cooking spray.
Pour blueberries into pan, sprinkle with sugar and lemon zest. 
Sprinkle dry cake mix evenly over blueberries. 
Cover cake mix with butter pieces.
Bake for 25 to 30 minutes.