Ingredient:

• 1/2 cup cold butter, cubed
• 3 ounces cold cream cheese
• 1-1/4 cups all-purpose flour
• 3/4 cup ground walnuts
• 1/4 cup sugar
• 2 tablespoons whole milk
• 1/2 teaspoon vanilla or almond extract
• 1 large egg, lightly beaten
• Confectioners' sugar