Preheat over to 350 degrees. Cut cinnamon bread into 8 equal thick slices and set aside. Note: Any cinnamon bread should work, even a pre-sliced loaf if that is all your local store has available
Spray 13 x 9 baking dish liberally with baking spray, then pour 1/2 of the melted butter (about 1/2 stick) into the bottom of the dish and spread. (Save the remaining butter for the drizzle)
Mix 1/4 cup brown sugar with 1/4 tsp cinnamon and sprinkle onto the butter in the baking dish
In a medium bowl whisk eggs until smooth, then mix in half & half, milk, 1/2 cup brown sugar, vanilla and pinch of salt
Arrange bread slides in baking dish in an overlapping pattern. Pour egg mixture over the top moving the slices around to help get each side evenly coating
In a small bowl mix karo syrup, remaining melted butter (about 1/2 stick), 1/4 cup brown sugar and 1/4 tsp cinnamon. Randomly drizzle over the bread pieces.
Let sit for 30 minutes up to over night in the refrigerator.
Bake for 35 mins or until golden brown
While the bread is baking, in a small bowl mix all of the glaze ingredients until smooth. Drizzle the glaze on top of each serving and enjoy this new family favorite!