| 2 tablespoons margarine |
| 1/3 cup sugar |
| 1/4 cup cold water |
| 1/2 teaspoon vanilla |
| 1/2 cup all-purpose flour |
| 2 tablespoons unsweetened cocoa powder |
| 1/2 teaspoon baking powder |
| 2 tablespoons finely chopped walnuts or pecans |
| Nonstick cooking spray |
| 1 teaspoon powdered sugar |
Makes 8 servings.