Double Cocolate Crumble Bars
| 1/2 | c | Butter or margarine |
| 3/4 | c | Sugar |
| 2 | | Eggs |
| 1 | ts | Vanilla |
| 3/4 | c | Flour |
| 1/2 | c | Chopped pecans |
| 2 | tb | Unsweetened cocoa powder |
| 1/4 | ts | Baking powder |
| 2 | c | Miniature marshmallows |
| 6 | oz | Chocolate chips |
| 1 | c | Peanut butter |
| 1 1/2 | c | Rice Crispies cereal |
