Peaches and Cream Tart

Name: Peaches and Cream Tart
Ingredients: Crust:; 2 cups vanilla wafer crumbs (about 55 finely-crushed cookies); 4 tablespoons (½ stick) unsalted butter, melted; ½ teaspoon kosher salt; Filling:; 4 large egg yolks; ¼ cup sugar; 2 tablespoons cornstarch; ¼ teaspoon kosher salt; 1¾ cups whole milk; ¼ cup heavy cream; 3 teaspoons Cointreau; 2 tablespoons (¼ stick) unsalted butter, cut into pieces; Topping:; 3 medium peaches, cut into wedges (about 2½ cups); 1 tablespoon fresh lemon juice; 1 tablespoon sugar