Traditional Scottish Shortbread

Name: Traditional Scottish Shortbread
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Cuisine: British
Ingredients: 2 1/2 cups all-purpose flour; 1 cup quality unsalted butter (, cubed and softened at room temperature (the better the butter, the better the shortbread)); 1/2 cup caster sugar; 1/2 teaspoon salt; Homemade Candied Ginger ((click link for recipe)); Homemade Candied Citrus Peel ((click link for recipe)); Other options include nuts, fresh herbs, dried cranberries, etc