Maple Chocolate Walnut Bars

1 1/2 cups flour
2/3 cup sugar
3/4 cup cold butter or margarine
1/2 teaspoon salt
1 egg, beaten
Preheat oven to 350 degrees. In large bowl, mix flour, sugar, butter, and
salt until crumbly. Stir in beaten egg. Press evenly into greased 9x13-inch
pan. Bake 25 minutes.
Filling:
1 cup chocolate chips
1 (14 ounce) can sweetened condensed milk
1 1/2 teaspoons maple flavoring
1 egg, beaten
2 cups walnuts, chopped
Sprinkle chocolate chips over baked crust. Combine condensed milk,
flavoring, and egg, and stir in walnuts. Pour over baked crust and bake 20
minutes longer or until golden brown. Cool. Cut into bars.