Preheat oven to 200°c/400°F, gas 6
Combine olive oil, rosemary, thyme, garlic, salt and pepper and stir through
Cut potatoes in half Note 4
Line a baking dish with non stick paper
Place the potatoes cut side down on baking tray
Use a pastry brush to coat the potatoes halves in the herb oil mix, repeat for each one
Bake in the oven for 20 mins.
Remove from oven, use tongs to rotate the potatoes around so the cut side is facing up. Use the brush again to coat each potato with the oil mix
Return to the potatoes to the oven and continue to roast for another 1 hr 10 mins.
Serve with fresh rosemary, salt, pepper and mustard yoghurt (optional)