Grease a 9 x 13″ baking dish. Add half of the torn bread and ½ cup of the blueberries, then more bread.
In a large bowl, whisk the eggs until frothy. Whisk in the milk, cream, sugar, vanilla extract, ½ tablespoon Member's Mark™ Ground Cinnamon, nutmeg and salt.
Pour the custard over the bread pieces; make sure the tops of the bread are all coated. Top with the remaining ½ cup blueberries. Cover with foil and refrigerate overnight.
In the morning, preheat the oven to 375℉. Remove the casserole from the fridge and bring to room temperature.
In a medium bowl, combine the rolled oats, pecans, turbinado sugar, flour, and 1 teaspoon cinnamon. Cut the butter into the other ingredients using a pastry cutter or fork until evenly combined and a crumbly streusel topping forms.
Sprinkle the streusel topping over the French toast. Bake 40 to 45 minutes until browned and set. Rest 10 minutes before serving.
Top with a light drizzle of icing and serve!