3/4 cup granulated sugar
1 teaspoon vanilla extract
1/2 cup maple syrup
6 tablespoons butter or margarine
2 (1 ounce) squares unsweetened chocolate
3/4 cup all-purpose flour
1/2 teaspoon baking powder
1/2 cup chopped walnuts
Sifted powdered sugar
Beat together eggs, granulated sugar and vanilla extract. Add syrup; mix well. Melt butter and chocolate over low heat; remove from heat. Blend in egg mixture.
Stir together flour, baking powder, and 1/4 teaspoon salt; stir into chocolate mixture. Stir in nuts. Spread in greased 9-inch square baking pan. Bake at 350 degrees F for 25 to 30 minutes. Cool; dust with powdered sugar.