Pecan sable cookies

Ingredients

• 2/3 cup plus 2 tablespoons confectioners sugar
• 1-1/4 cup AP flour
• 1/2 teaspoon salt
• 1/4 teaspoon baking powder
• 1 stick or 1/2 cup or 1/4lb unsalted butter, softened
• 1/2 teaspoon vanilla extract
• 1 large egg seperated

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Preparation

• Preheat your oven to 325F.
• Pulse toasted pecans with 2 tablespoons of powdered sugar in a food processor until finely ground.
• Whisk together the flour, salt, and baking powder in a bowl.
• Beat together butter, remaining 2/3 cup powdered sugar and vanilla in a bowl with an electric mixer.
• Add egg yolk and beat well. Add flour and ground pecan mixture from the food processor and mix everything at low speed until just combined 30 seconds to 1 minute.
• Half the dough and roll out one half between two sheets of wax paper until it's about 1/4" thick.
• Use the middle rack of the oven.