Preheat oven to 200 degrees F. Place a rack on a baking sheet and place in oven.
Arrange the bread in two 8 x 8 x 2-inch glass baking dishes. Whisk eggs, half-&-half, salt, spices, and vanilla until smooth but not foamy. Pour the batter over bread. Turn the bread over, let sit 5 minutes, turn the bread over again.
Preheat the Griddler in the open griddle up position at 325 degrees F. When the Griddler is hot (indicator light will turn green), arrange the soaked bread on the hot griddle. Cook until deep golden brown on each side, about 3 to 4 minutes per side. Remove from Griddler and serve or keep warm in low oven. Serve with warm Cranberry Maple Syrup or another favorite of yours.