Vegan and Vegetarians:
Cook the sauce for 45 minutes and then add any vegetables you enjoy, potatoes, chickpeas, cauliflower, courgettes, aubergines, firm or smoked tofu. Cook until the vegetables are soft but retain their shape.
If you can't find Kashmiri peppers use dried red chillies
Meat:
Make sure you read the packet or ask your butcher how long you need to cook the meat for.
As an indication, a 1inch diced cube of stewing beef or lamb can take just over two hours to soften.
Cooking method:
No one method is better than the other.
If you are out, choose a slow cooker or pop a casserole dish in the oven at 160℃.
If you are home and can stir more often cook the stew on the hob.