Ingredients:
- 3 ounces pitted prunes (about 10)
- 2 tablespoons strongly brewed coffee
- 3 tablespoons evaporated milk
- 1 tablespoon vegetable oil
- 2 large eggs
- 1 teaspoon vanilla extract
- 1/2 cup sugar
- 1/2 cup unsweetened cocoa
- 1/2 cup whole-wheat flour
- 1/4 teaspoon salt
- 1 1/2 ounces semisweet or bittersweet chocolate, finely chopped