Slice French bread into 20 slices, 1-inch thick each. (Use any extra bread for garlic toast or bread crumbs). Arrange slices in a generously buttered 9X13 casserole dish in 2 rows, overlapping the slices.
In a large bowl, combine the eggs, half and half, milk, sugar, vanilla, 1/2 teaspoon cinnamon, 1/2 teaspoon nutmeg and salt and beat with a rotary beater or whisk until blended but not too bubbly. Pour mixture over the bread slices, making sure all are covered evenly with the milk-egg mixture. Spoon some of the mixture in between the slices. Cover with foil and refrigerate overnight.
The next day, preheat oven to 350 °F. Spread Praline Topping evenly over the bread and bake for 45 minutes, until puffed and lightly golden. Serve with Raspberry Syrup.
Combine butter, brown sugar, pecans, light corn syrup, 1/2 teaspoon cinnamon and 1/2 teaspoon nutmeg in a medium bowl and blend well. Spread over bread as directed above.
Combine raspberry preserves, water and liqueur in a small saucepan and place over medium heat. Stir until warm and thinned out like syrup.