|  | BROWNIE | 
| 1/2 | c | Butter | 
| 1/2 | c | Oil | 
| 1 | c | Water | 
| 4 | tb | Unsweetened cocoa | 
| 2 | c | Flour | 
| 2 | c | Sugar | 
| 2 |  | Eggs | 
| 1 | ts | Baking soda | 
| 1/2 | c | Buttermilk | 
| 1 | ts | Vanilla | 
 |  | FROSTING | 
| 1/2 | c | Butter | 
| 3 | tb | Unsweetened cocoa | 
| 1/3 | c | Buttermilk | 
| 1 | pk | Confectioners sugar | 
| 1 | c | Chopped walnuts | 
| 1 | ts | Vanilla |