One Jaffa Cake contains 46 calories, 8.6g of carbs, and 1g of fat. One chocolate digestive contains 86 calories, 10.8g of carbs, and 4.1g of fat. Two fingers of KitKat contains 105 calories, 12.7g of carbs, and 5.3g of fat. One chocolate mini roll contains 115 calories, 13.6g of carbs, and 6.3g of fat.