Overnight French Toast Casserole

1⁄2 cup butter
12 slices white bread
1 cup brown sugar
1 teaspoon cinnamon
5 -6 eggs
1 1⁄2 cups milk

Melt butter in a 9 x 13 baking pan. Put 6 slices of bread in bottom of pan.

In a bowl mix 1 cup brown sugar with 1 tsp cinnamon. Sprinkle 1/2 of this sugar mixture over bread. Add another layer of 6 slices of bread.

In a bowl, whisk eggs with milk until well blended. Pour over bread layers. Sprinkle with remaining sugar mixture. Cover and refrigerate overnight.

Bake covered at 350F 30 minutes. Uncover and continue baking 15 minutes or until set and browned.

(Source: https://www.geniuskitchen.com/recipe/overnight-french-toast-casserole-42292)