Chicken Liver Crostini

Name: Chicken Liver Crostini
Ingredients: 6 tbsp. extra-virgin olive oil; 1 lb. chicken livers, trimmed; 4 anchovy filets in oil, drained and; finely chopped; 1 medium onion, finely chopped; 1 medium carrot, finely chopped; 1 rib celery, finely chopped; 1 clove garlic, finely chopped; 2 tbsp. vin santo or sherry; 1/4 cup chicken broth; 1/4 cup finely chopped flat-leaf parsley; 2 tbsp. salted capers, rinsed and chopped; 2 tbsp. fresh lemon juice plus 1 tbsp. lemon zest; Kosher salt and freshly ground black pepper,