Slow Cooked Pepper Pork Curry

Ingredients

• 1.2 kg diced pork shoulder
• 1 red onion, sliced
• 2 tsp crushed garlic
• 4 tsp crushed ginger
• 4 tsp black cracked pepper
• 1 tsp cinnamon
• 2 tsp ground cumin
• ½ tsp ground fenugreek
• ½ tsp ground cardamom
• 1 cup chicken broth powder
• 400 g diced tomato
• 1 cup Greek yogurt
• 200 g spinach leaves
• ⅓ chopped coriander
• 2 tsp salt