Creme Brulee Cheesecake Bars

For the crust: 9 whole graham crackers 1/2 stick unsalted butter, melted

For the filling: 2 (8-ounce) packages cream cheese, at room temperature 1 cup granulated sugar 2 large eggs 1 large egg yolk 1 vanilla bean, split and scraped 1/2 teaspoon fine sea salt

For the brulee topping: 1/4 cup granulated sugar