Good-Cooking - Creme Brulee French Toast

Ingredients

• 1 stick (1/2 cup) unsalted butter
• 1 cup packed brown sugar
• 2 tablespoons corn syrup
• 1 loaf Challah
• 5 large eggs
• 1 1/2 cups half-and-half
• 1 teaspoon vanilla extract
• 1 teaspoon Grand Marnier
• 1/4 teaspoon salt