Curried Chicken with Farro and Apple

Name: Curried Chicken with Farro and Apple
Ingredients: 2 tablespoons curry powder; 1 teaspoon cayenne pepper; 1/2 teaspoon ground cumin; 1/2 teaspoon ground cinnamon; 1/2 teaspoon ground turmeric; 1/2 teaspoon ground black pepper; 1/2 teaspoon salt; 1/4 teaspoon ground coriander; 4 boneless, skinless chicken breast; 1/4 cup olive oil; 1/2 cup butter; 6 garlic cloves, roughly chopped; 2 tablespoons ginger, roughly chopped; 1/2 cup yellow onion, roughly chopped; 3 Granny Smith apples, roughly chopped; 1/4 cup Calvados, or other apple brandy; 16 ounces hard cider; juice and zest of 1 lemon; 1 1/2 cups farro; 4 cups chicken stock; salt and pepper, to taste