Overnight Cinnamon Baked French Toast Casserole

Casserole:

1 pound loaf Sourdough or Frenchbread

8 large eggs

2 cups milk

1/2 cup heavy whipping cream

1/2 cup granulated sugar

1/4 cup packed light brown sugar

2tbsp vanilla extract

1 1/2tsp ground cinnamon

Topping:

3/4 cup all purpose flour

3/4 cup packed light brown sugar

2tsp cinnamon

1/4tsp salt

1/2 cup butter cut into pieces

Grease 9x13 baking pan, set aside.  Cut bread into 1 inch chunks and spread evenly onto bottom of pan.  In large bowl whisk together eggs, milk, cream, sugars, vanilla, and cinnamon.  Pour evenly over the bread.  Cover casserole and store in fridge for a couple of hours or overnight. To make the streusel topping combine flour, sugar, cinnamon, and salt.  Add butter and cut into the dry mixture until it comes together to form a crumble.  Preheat oven to 350 degrees.  Crumble streusel topping over bread.  Bake for 45 minutes up to an hour.  Serve with warm maple syrup or fresh fruit.