This was a recipe published by Nestle, probably some time in the 1960’s.
1 cup butter
1/2 tsp. vanilla
1 teaspoon salt
1 cup sugar
2 cups flour
12 ounces Nestle’s Semi-Sweet Chocolate Chips
1/2 cup finely chopped walnuts
Preheat oven to 375 degrees F. Combine butter, vanilla and salt in a bowl and blend well. Gradually beat in sugar. Add flour and chocolate chips; mix well. Press mixture evenly into an ungreased 10x15-inch baking pan. Sprinkle nuts over top and gently press into dough.
Bake for 25 minutes. Cool completely in pan, then break Kookie Brittle into irregular pieces. Store in air-tight container.
Makes about 1 3/4 pounds of brittle