Marshmallow-Stuffed Hot Cocoa French Toast

Name: Marshmallow-Stuffed Hot Cocoa French Toast
Prep time: 20 min
Cook time: 6 min
Total time: 26 min
Cuisine: European, American, Mediterranean, French
Ingredients: 1 loaf thick-sliced brioche or challah bread (about 1 ½-2”); 12 marshmallows; 4 large eggs; 1 cup half & half; 8 oz instant hot cocoa, prepared and cooled; 4 tablespoons unsalted butter; Whipped cream, chocolate syrup, and hot cocoa mix for serving (optional)