Stuffed French Toast with Pickled Peaches and Bourbon Caramel

Name: Stuffed French Toast with Pickled Peaches and Bourbon Caramel
Ingredients: 1/2 cup Grade B pure maple syrup; 1/4 cup white wine vinegar; 3 ripe peaches, peeled, pitted and sliced into eighths; 1/4 cup Grade B pure maple syrup; 2 tablespoons unsalted butter; 1/4 cup bourbon; 3 ounces cream cheese, such as Philadelphia, at room temperature; 3 ounces mascarpone cheese, at room temperature; 2 tablespoons peach preserves; 1 tablespoon clover honey; 1/4 teaspoon ground cinnamon; Eight 1/2-inch-thick slices challah bread; 4 tablespoons canola oil; 4 slices thick-cut bacon, cut into lardons; 6 large eggs plus 2 large egg yolks; 2 tablespoons granulated sugar; 1 teaspoon pure vanilla extract; 1/2 teaspoon ground cinnamon; Pinch of salt; 1 cup heavy cream; 1 cup whole milk; 2 tablespoons bourbon; 4 tablespoons unsalted butter; Confectioners¿ sugar, for garnish; Fresh mint sprigs, for garnish