Step 1

Cut the Brioche bread into chunks and lay them on a large baking dish.

Step 2

Set the bread out overnight or place it in an oven at 200 degrees for 1 hour.

Step 3

Coat your baking dish with non-stick baking spray.

Step 4

Add the bread chunks to the baking dish. Set to the side.

Step 5

In a large bowl, add your milk, cream, eggs, brown sugar, cinnamon, nutmeg, vanilla extract. Whisk to combine.

Step 6

Pour your cream mixture on top of the bread.

Step 7

Lightly press down on the bread with your hands for 3-40 seconds so the bread on top can soak in the cream mixture.

Step 8

Cover the baking dish and place it in your refrigerator overnight.

Step 9

Preheat the oven to 350 degrees.

Step 10

Cover your French toast casserole with foil that has been coated with non-stick baking spray.

Step 11

Place the baking dish in the center of your oven.

Step 12

Bake for 35 minutes, then remove the foil and bake for another 30 minutes.

Step 13

Allow to cool for 10-15 minutes.

Step 14

In a medium-sized bowl add all of your icing ingredients.

Step 15

Whisk to combine until it is smooth and no visible clumps.

Step 16

Top your French toast with the vanilla icing.

Step 17

Serve and enjoy.