Cinnamon Roll Stuffed Baked French Toast

4 slices of French bread, 2 inches thick each 1/2 cup brown sugar 2 tsp cinnamon 4 tablespoons butter 1 cup milk (the more fat the better) 2 eggs 1 tsp vanilla For the frosting: 3 tbsp butter, melted 1 cup powdered sugar 1 tsp vanilla 2 tablespoons milk

Cut a large slit (about 1 inch across) in each piece of bread. Mix together the brown sugar and cinnamon. Stuff about 2 tablespoons into each piece of bread. Add a tablespoon of butter into each slit with the sugar mixture. Grease a 9x9 baking dish. Layer the stuffed french toast in the dish. Whisk together the milk, eggs, and vanilla. Pour it over the stuffed bread, try to cover each piece of bread completely.

Cover and chill for at least 4 hours or overnight. Bake at 350ºF for 35-40 minutes until golden brown and filling is slightly oozing out of the bread. Whisk together the frosting ingredients until smooth and drizzle over the warm french toast before serving.