Roast in the oven for 30–35 minutes, until soft, adding the sliced pepper for the last 10 … Add onion; cook and stir until soft, 1 to 3 minutes. Roast in the oven for 30–35 minutes, until soft, adding the sliced pepper for the last 10 … Roast in the oven for 30–35 minutes, until soft, adding the sliced pepper for the last 10 minutes. 2. Add curry powder and chile; cook and stir 2 to 3 minutes more, adding a … Once ready, remove and leave to one side. Place the sweet potato and butternut squash in a baking tray with a pinch of salt, 2 tablespoons of the coconut oil, the turmeric, cinnamon, chilli powder and curry powder. Heat oil in a large saucepan over medium heat. 2. Place the sweet potato and butternut squash in a baking tray with a pinch of salt, 2 tablespoons of the coconut oil, the turmeric, cinnamon, chilli powder and curry powder. Put the onion, chillies, ginger, garlic, turmeric, ground coriander, cinnamon and salt into a food processor and blend to a paste, or use a stick blender and a bowl. Place the sweet potato and butternut squash in a baking tray with a pinch of salt, 2 tablespoons of the coconut oil, the turmeric, cinnamon, chilli powder and curry powder.