In bowl of container with a flat bottom, whisk together the Eggnog, eggs, vanilla extract, almond extract, rum extract (if using), cinnamon, and nutmeg. 

Heat a skillet or griddle on medium-low heat. When the griddle is hot, melt some butter on it or spray with non-stick spray. (If you're cooking on a non-stick surface, you can skip that.)

Submerge each slice of bread in the egg mixture and let it soak it up for a few seconds. Let the excess batter drip off and transfer the griddle and cook until golden brown. Flip and cook the other side until golden brown. Transfer to bread to a plate and keep warm while cooking the rest of the French Toast.

Serve with pure maple syrup , fresh berries, and a dollop of whipped cream if desired!