Baked Cinnamon Crème Brûlée French Toast with Raspberry Preserves

Bahan-bahan (8 porsi)

• 1/4 cup real maple syrup
• 1/2 cup brown sugar
• 6 tablespoons butter, melted
• 8 large eggs beaten
• 2 1/2 cups whole milk
• 3 tablespoons Grand Marnier ((orange liqueur))
• 1 tablespoon vanilla extract
• 1 teaspoon cinnamon
• 1/4 teaspoon ground nutmeg
• 1/2 teaspoon kosher salt
• 1 loaf challah bread, sliced into thick slices
• 1 -2 tablespoons granulated sugar
• 1 jar (10 ounces) raspberry preserves
• whipped cream, for serving ((optional))