Bake Ahead French Toast

1 stick butter
1 c. brown sugar
1 loaf cinnamon bread slices, with or without raisins
1 T. cinnamon
1 1/2 c. milk
6 eggs
1 T. vanilla
syrup

In a warm oven, melt 1 stick butter in 9 x 13 pan. Add brown sugar to melted butter and stir to make a paste on the bottom of your pan. Cover with two layers of bread slices. Beat eggs and milk together with vanilla and cinnamon and pour over bread slices. Chill overnight. Uncover and bake at 350° for 30 minutes. Cut into squares and turn upside down on plate drizzled with syrup. Drizzle more syrup over top and sprinkle with powdered sugar; serve.