IOLA'S SUGAR COOKIES

Steps:

• To make cookie dough: In large bowl, whisk flour, baking powder, baking soda and salt. Using electric mixer at medium-high speed, beat together butter and 1/2 cup sugar for 2 minutes or until fluffy. Reduce mixer speed to medium. Add egg and vanilla. Beat until combined. Add flour mixture and buttermilk alternately in 2 batches, beating until incorporated after each addition. Press dough into 4-inch disk. Wrap in plastic wrap. Refrigerate until well chilled, at least 2 hours or up to 24 hours.
• To prepare oven, baking sheet: Adjust oven rack to middle position. Preheat oven to 350 degrees. Line baking sheet with parchment paper.
• To roll cookies: On lightly floured work surface, roll dough out to 1/4-inch-thick circle. Cut into rounds using 2 1/2-inch cookie cutter. Space rounds 1 inch apart on prepared baking sheet. Sprinkle with some remaining sugar.
• To bake cookies: Bake for 12 to 15 minutes or until just golden around edges. Cool cookies on baking sheet for 2 minutes. Transfer to wire rack. Cool completely, about 20 minutes. Gather scraps. Reroll dough. Repeat with remaining dough and sugar.