Gran'ma Wood's Imitation Chocolate Prune Cake

1 pkg. pudding-included devil’s food cake mix

1 ½ cup cooked & chopped prunes (these may be cut with scissors, or mashed, or pureed/chopped in a food processor)

½ cup buttermilk*

½ cup oil

3 eggs

½ cup walnuts, chopped

Heat oven to 350° (375°).  Grease and four 2 8 inch or 9 inch cake pans.  In a large bowl mix cake mix, buttermilk, oil and eggs at low speed until moistened.  Beat 2 minutes at high speed.  Stir in prunes and walnuts.  The batter is thick.  Turn into the cake pans.

Bake for 35 to 45 minutes or until toothpick inserted in center comes out clean.  Frost with chocolate butter frosting.

*To substitute for buttermilk, use 1 ½ teaspoon vinegar or lemon juice plus milk to make ½ cup.