Bake the biscuits according to the package, it is best if you can bake them the night before so they are not too fresh and soft.
Spray a 9x13 casserole dish with some cooking spray.
Cut each of the biscuits into 12 pieces, spread pieces evenly over the bottom of the dish.
Spread out the fresh blueberries on top of the biscuit pieces.
In a bowl or large measuring cup whisk together the eggs, milk, syrup, vanilla and cinnamon.
Pour evenly over the biscuits and blueberries, cover and let sit in the fridge for 30 min - 1 hour, if you want to make this up overnight that is fine too. You can bake right away but for best results let it soak in the fridge for a bit first.
In a small bowl mix together the sugar, flour and melted butter til it forms a crumb, sprinkle evenly over top of the bake.
Heat oven to 350F and bake for 40 minutes.
Makes 6 servings, store in the fridge and it will freeze well.