2In a mixing bowl, combine the eggs, milk, heavy whipping cream, and vanilla extract. Whisk until well combined and set aside.
3Melt the butter, then stir in the brown sugar until fully combined.
4Pour the butter and sugar mixture into an 11x13-inch baking dish and spread evenly.
5Arrange a layer of bread in the baking dish.
6Spoon half of the egg mixture over the bread and sprinkle with a layer of cinnamon.
7Add another layer of bread on top, followed by the remaining egg mixture. If any spots look dry, press down with a spoon to ensure everything is coated.
8Add another layer of cinnamon on top. Cover the dish with plastic wrap and refrigerate overnight.
9The next morning, remove the plastic wrap, cover the dish with aluminum foil, and bake in a preheated oven at 350 degrees for 45 minutes.
10Remove the foil and continue to bake for the final 15 minutes.