Ingredients for 1 servings:
1. 3/4 cup sugar
2. 1/2 cup margarine, softened
3. 2 eggs
4. 1 teaspoon vanilla
5. 3/4 cup flour
6. 1/2 cup chopped walnuts
7. 2 tablespoons cocoa
8. 1/4 teaspoon baking powder
9. 2 cups miniature marshmallows
10. 1 cup creamy peanut butter
11. 3/4 cup semisweet chocolate morsel
12. 2 cups puffed rice cereal
13. 1/4 teaspoon salt

Directions:
1. Preheat oven to 350°F
2. Grease a 13x9x2 inch baking pan.
3. Cream together sugar and butter until fluffy.
4. Beat in eggs and vanilla.
5. In a separate bowl, mix together flour, walnuts cocoa and baking powder.
6. Stir into butter mixture.
7. Spread in the bottom of prepared baking pan.
8. Bake 15 to 20 minutes or until center is set.
9. Sprinkle marshmallows evenly over top. Bake for 3 minutes to melt.
10. Remove from oven and let it cool down.
11. Combine chocolate chips and peanut butter in a medium saucepan.
12. Cook and stir over low heat until melted and smooth, about 3 minutes.
13. Stir in cereal and salt and mix gently to combine.
14. Spread the mixture over the marshmallow layer.
15. Let them cool down before cutting into bars.
16. Store in the refrigerator.