For shortbread: Preheat oven to 350 degrees.
Generously butter 9-inch square baking dish. Cream butter and
sugar in food processor until light and fluffy.
Add flour and process just until blended; do not form ball. Pat
into bottom of prepared dish. Bake until shortbread is light brown,
about 25 minutes.
For topping: Beat sugar, maple syrup and butter to blend. Beat
in egg and vanilla. Pour over shortbread. Sprinkle evenly with
walnuts. Bake until topping is set, about 25 minutes. Cool on
rack. Cut into 1-1/2" squares. Store in airtight container.
Source: Bon Appetit magazine, December 1984. Typed by
Karen M.