Caramel Egg Custard Tart

Name: Caramel Egg Custard Tart
Ingredients: 140 g (1 cup) all purpose flour; 75 g (1/2 cup) white whole wheat flour; 15 g (2 tablespoon) cornstarch; 10 g (1 tablespoon) brown sugar; 1/2 teaspoon kosher or sea salt; 125 g (9 tablespoons) unsalted butter; 1 large egg; 2 tablespoon water; 100 g (1/2 cup) white granulated sugar; 2 tablespoon mild flavored honey (like clover); 3 tablespoons whole milk; 15 g (2 tablespoon) powdered milk; 18 g (2 tablespoon) cornstarch; 4 large egg yolks; 2/3 cup whole milk; 1 vanilla bean