Maple Shortbread Cookies

Steps

1. 1In a large bowl, beat butter and maple sugar with an electric mixer on medium speed until creamy and smooth
2. 2Beat in yolk until fully incorporated
3. 3In a medium bowl, whisk flour, baking powder and salt
4. 4Add flour mixture to butter mixture and beat for about 20 seconds, until a smooth dough comes together
5. 5Pat dough on the counter to form a 1x2x7 inch brick
6. 6Wrap in plastic and refrigerate dough for at least 4 hours, until completely chilled
7. 7Preheat oven to 375 degrees F
8. 8Use a sharp knife to cut half the dough into 1/4 inch slices
9. 9Refrigerate remaining dough
10. 10Arrange slices on the baking sheet, spacing them generously
11. 11Sprinkle with turbinado sugar, if using, per cookie
12. 12Bake for 8-10 minutes, until lightly browned
13. 13Remove from the oven and cool on baking sheet for 5 minutes before transferring cookies to a cooling rack to cool completely
14. 14Repeat with remaining dough