Slow Cooker Beef Madras - Pinch Of Nom

Ingredients

• 600 g lean diced stewing steak or braising steak (all visible fat removed)
• 2 medium onions (peeled and chopped)
• 4 cloves of garlic (peeled and crushed)
• 3 cm piece of root ginger ((1 inch) peeled and finely grated)
• 1 medium green chilli (seeds left in and finely chopped (approx 8g))
• 1 tsp mild chilli powder
• 1 tsp ground turmeric
• 2 tsp ground cumin
• 2 tsp ground coriander
• 1 tbsp garam masala
• 1/2 tsp ground cinnamon
• 400 g tin chopped tomatoes
• 2 tbsp tomato puree
• 1 beef stock cube
• 300 ml boiling water
• 3 tbsp cider vinegar
• 1 tsp salt
• 1 tsp white granulated sweetener
• low-calorie cooking spray
• a few fresh coriander leaves (stalks removed and roughly chopped, to garnish (optional))