- 1 pound butter
- 1 cup white sugar
- 1 cup packed brown sugar
- 1 cup chopped walnuts
- 2 cups semisweet chocolate chips
In a heavy saucepan, combine butter, white sugar, and brown sugar. Cook over medium heat, stirring constantly until mixture boils. Boil to brittle stage, 300 degrees F (150 degrees C) without stirring. Remove from heat.
Pour nuts and chocolate chips into a 9×13 inch dish. Pour hot mixture over the nuts and chocolate. Let the mixture cool and break it into pieces before serving.