Roysters T Bone Steak. These are a bubbled crisp with a big beefy steak flavour and big crunch. Nutritional information per 100g Energy: 2253 kJ, 540 kcal Fat: 32g of which saturates 3.1g Carbohydrates: 55g of which sugars 0.8g Protein: 5.5g Salt: 1.8g.