Mrs Balbir Singh's | Spicy Potato Tarkari

Ingredients

• 455g (1lb) Small Baby Potatoes (or New Potatoes)
• 455g (1lb) Tomatoes, cut into wedges
• 1 1/2 tsp Salt, or to taste
• 1/2 tsp Red Chilli Powder
• 1/2 tsp Turmeric Powder
• 60-85g (2-3oz) Ghee (or Preferred Oil)
• 230g (8oz) Small Red Onions or Red Shallots
• 1/2 tsp Garam Masala
• 3 Green Chillies, sliced lengthwise
• 30g (1oz) Fresh Ginger, finely-cut
• 1 tsp Sugar
• 1 tbsp Fresh Coriander Leaves, chopped (for garnishing)