"Traditional Scottish shortbread is baked in molds. In this modern version, the dough is simply pressed into a pan, baked, and cut into squares. Grated lemon peel cuts the buttery richness, and semolina flour adds texture...."
INGREDIENTS
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1 1/2 cups all purpose flour
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1/2 cup sugar
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1/2 cup semolina flour*
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1 cup (2 sticks) chilled unsalted butter, cut into 1/2-inch cubes
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1 1/2 teaspoons grated lemon peel
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1 teaspoon vanilla extract
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1 cup shelled natural pistachios (about 4 ounces), coarsely chopped