Ingredients:
1/2 cup (1 stick) butter or margarine, softened
3/4 cup brown sugar, firmly packed
1 teaspoon vanilla extract
1 large egg
1 cup all-purpose flour
1/2 teaspoon baking soda
1/4 teaspoon salt
4 ounces semi-sweet chocolate, divided
4 ounces white chocolate, divided
1 cup walnuts, chopped and divided
For the chocolates, I bought these 4 ounce baking bars, since it is originally a Ghirardelli recipe. I chopped them into pieces, but you certainly could measure 4 ounces of chocolate chips or chunks.
^ chocolate bars, chopped and divided
Directions:
Preheat oven to 350 degrees. Beat butter, sugar, egg, and vanilla until light and fluffy. Mix in flour, baking soda, and salt. Stir in half of the semi-sweet chocolate, half of the white chocolate, and half of the walnuts.
Spread in greased, foil-lined 9 inch square baking pan.
Bake 12-15 minutes, or until toothpick inserted in the center comes out almost clean.
Sprinkle with remaining semi-sweet and white chocolates.
Cover with foil. Let stand 5 minutes or until chocolates are melted. Swirl chocolates with small knife to marbleize. Sprinkle with remaining walnuts. Cool in pan until firm, then cut into bars.
You can see my bars don’t have walnuts in them. My son hasn’t had nuts yet, and since he likes to taste-test my desserts, I didn’t add them. But I’m sure it would add to their tastiness!
Bon Appetit!