| 8 tablespoons unsalted butter, at room temperature |
| 6 1/2 oz semisweet dark chocolate, melted and cooled |
| 2 tablespoons unsweetened cocoa power |
| 1 3/4 ounces semisweet dark chocolate, coarsely chopped |
| 1/4 cup cherry jam or jelly |
| 3 cups, heavy cream, whipped |
| 1 (12-15 ounce) jar pitted sour (black) cherries, drained |
| 5 ounce semisweet dark chocolate, melted |