- 1 cup butterscotch chips
- 1/4 cup butter
- 2 eggs
- 1/2 teaspoon vanilla extract
- 3/4 cup all-purpose flour
- 1 teaspoon baking powder
- 3/4 teaspoon salt
- 1 cup brown sugar
- 1 cup semi-sweet chocolate chips
- 1/2 cup chopped walnuts
- 1/2 cup raisins (optional)
- Place butterscotch chips and butter into a glass bowl. Heat in the microwave for about 3 minutes, stirring at 30 second intervals until smooth. Set aside to cool until firm.
- Preheat the oven to 350 degrees F (175 degrees C). Grease a 9×13 inch pan.
- In a large bowl, beat the butterscotch chip mixture with eggs and vanilla until well blended. Combine the flour, baking powder, and salt; stir into the batter until evenly mixed. Mix in the brown sugar, chocolate chips, walnuts, and raisins. Spread the batter evenly in the prepared pan.
- Bake for 25 minutes in the preheated oven, just until the bars begin to pull away from the sides of the pan. Cut into squares while warm.