Chocolate Mascarpone Stuffed French Toast with Strawberry Syrup

Name: Chocolate Mascarpone Stuffed French Toast with Strawberry Syrup
Ingredients: 1/2 cup mascarpone, at room temperature; 1 tablespoon heavy cream; 1 tablespoon orange zest; 1 tablespoon granulated sugar; 1 ounce semisweet chocolate, melted and cooled, plus more for grating; 12 slices day-old brioche, about 3/4-inch thick; 3 large eggs; 1 1/2 cups half-and-half; 2 tablespoons unsalted butter, divided, plus more if needed; Confectioners' sugar, for dusting; Strawberry Syrup, warmed, recipe follows; 2 pints whole fresh or frozen strawberries, hulled; 2/3 cup sugar, plus more if needed; 1/4 cup corn syrup; Pinch sea salt; 1 tablespoon lemon juice