Thai T-Bone Steak With Coriander Sweet Potatoes

  1. To make the Thai flavoured marinade, mix all the marinade ingredients together in a bowl until well combined and pour into a zip lock bag.
  2. Add the T-bone steaks to the zip lock bag and turn to coat in the marinade. Place in the refrigerator for about 1 hour but the longer the meat marinates the better.
  3. To prepare the sweet potatoes, boil them in water on the stovetop or prick their skins with the tines of a fork and place them in the microwave at full power for 6 minutes to par-cook.
  4. Tightly wrap each sweet potato in tinfoil (shiny side inside) with a knob of butter and a sprinkle of salt and place them between the burning coals of a fire or cook them in a 200°C/390°F oven for about 20 minutes or until soft. Give them a squeeze with a pair of tongs to check if they are ready.
  5. Grill the T-bone steaks on a hot fire or griddle pan and baste the meat with the leftover marinade. Turn to cook on both sides to your preferred doneness; for a T-bone around 2 cm thick, it will take approximately 3 minutes on each side for medium-rare which is recommended.
  6. Leave the meat to rest for half its cooking time.
  7. Slice open the caramelised sweet potatoes and drizzle with olive oil and/or add knobs of butter, season with salt and freshly ground black pepper and generously garnish them fresh coriander leaves.
  8. Tuck into these tangy Thai infused T-bone steaks and buttery sweet potatoes whilst hot.


  •  4 x 400 g T-bone steaks

Coriander sweet potatoes:

  • 4 sweet potatoes, scrubbed clean
  • +- 100 g butter
  • Olive oil
  • 1 punnet fresh coriander leaves
  • Salt and freshly ground black pepper

Thai marinade:

  • 2 Tbsp. fish sauce
  • 2 Tbsp. lime juice
  • 1 tsp rice wine vinegar
  • 1 tsp soya sauce
  • 3 Tbsp. sweet chilli sauce
  • 1 Tbsp. sugar
  • 2 garlic cloves, crushed
  • 3 cm piece ginger, grated
  • 1 Tbsp. fresh coriander leaves
General Info
Prep: 15 min
Cooking: 20 min
Ready In: 1h 35 min
Servings: 4 people
Tips & Tricks

These Thai T-bone steaks are perfect for serving as a meal for 4 or as part of a larger braai with a variety of meats and side dishes.