Ring in Rosh Hashanah With Good Luck and Some Sweet Honey Tzimmes

Name: Ring in Rosh Hashanah With Good Luck and Some Sweet Honey Tzimmes
Cuisine: European, American, Middle Eastern, Eastern European
Ingredients: 3 pounds sweet potatoes; 2 pounds medium carrots; 2 cups prunes (pitted); 3 teaspoons orange zest (freshly grated); 1 cup orange juice (freshly squeezed); 1 cup water; 1/4 cup honey; 1/4 cup brown sugar (firmly packed); 2 teaspoons ground cinnamon; 1 teaspoon kosher salt; 1/4 teaspoon freshly ground black pepper; 1/4 cup unsalted butter (cold and cubed)