Preheat your oven to 350ºF and grease a 8-inch round cake pan.
Place the butter, powdered sugar, salt, and all-purpose flour in a food processor and pulse the mixture until a smooth and sticky dough forms.
Press the dough into the pan and score into 16 wedges. Sprinkle with the sugar and bake until firm and golden brown, about 35-40 minutes. Remove the pan from the oven and let sit 5 minutes. Turn out onto a piece of parchment and cut into wedges. Cool completely before serving.
Notes
If you do not have a food processor, mix the ingredients by hand until a smooth dough forms.
Make sure the butter is softened before making the dough.
Perfect Pairing
Serve these Scottish Shortbread Cookies with Granola Stuffed Pears.
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