For the crust:
1 1/2 cups graham cracker crumbs
3 tablespoons confectioners’ sugar
1/8 teaspoon kosher salt
1/4 teaspoon ground cinnamon (optional)
1/2 cup (1 stick) unsalted butter, melted
For the filling:
1/2 cup white sugar
1 pound cream cheese
1/4 cup milk
2 egg
2 tablespoons vanilla extract
1/3 cup semisweet chocolate chips, melted