 |
6 tablespoons unsalted butter
|
 |
½ cup white onion, finely minced
|
 |
2 garlic cloves, finely chopped
|
 |
½ cup celery, cut in large pieces
|
 |
1 lb (425 g) chicken liver
|
 |
2 tablespoons Cognac or Port
|
 |
½ teaspoon ground allspice
|
 |
5 teaspoons water-packed green peppercorns, drained
|