Cut French Bread into 1 inch slices.
Arrange slices in 2 overlapping rows in a generously buttered 9 x 13 baking dish.
Combine eggs, half and half, milk, sugar, vanilla, cinnamon, nutmeg and salt and whisk until blended but not too bubbly.
Cover bread evenly with mixture. Spoon some of the mixture in between the slices.
Cover with foil and refrigerate overnight.
Combine all praline topping ingredients and blend well.
Spread Praline Topping evenly over the bread and bake for 40 minutes, until puffed and lightly golden and serve with maple syrup.