Prepared cake mix according to the package instructions. You could also prepare a yellow cake batter from scratch.
In a 9x9 square baking pan pour the melted butter. Sprinkle the brown sugar over the top. Stir if needed to spread evenly.
Add the blueberries over the top of the brown sugar mix, again spreading them out as evenly as possible. Finally, Top with the cake batter spreading evenly.
Bake at 350 for 45-50 minutes or until a toothpick inserted in the center comes out clean.
Allow the cake to rest for 10 minutes.
After 10 minutes carefully flip the cake onto a cake plate and out of the pan. Allow to finish cooling and serve.
gluten free
Use a gluten free cake mix or cake recipe
Dairy Free
Use a dairy free cake mix and melted coconut oil or diary free margarine in place of the melted butter.
Video
Notes
Can be stored in a covered cake plate on the counter for 2-3 days safely. Otherwise store in the fridge in an airtight container.