Traditional shortbread is a rich, crumbly, buttery cookie made with nothing more than flour, butter, and sugar. It's incredible how the most basic ingredients produce something so special when you treat them well and use them in the right proportions.
180 g (6.3 ounces) unsalted butter, at room temperature
90 g (1/3 cup) granulated sugar
2 g (1/2 + 1/8 teaspoon) kosher salt
5.9 (1 teapoon) vanilla paste
270 g (1 3/4 cups + 3 tablespoons) all-purpose four
24 g (2 tablespoons) granulated sugar for dusting