Hi Gagomes, back to basics...
As a general rule of thumb, a Bengali BIR "Mix Powder" starts off with 4 main
ground spices which are the primary elements.
1. Madras Curry Powder (A historic blend of at least 12 spices)
2. Turmeric Powder
3. Coriander Powder
4. Cumin Powder
Then each Chef/Restaurant usually might add secondary spices into the Mix
5. Paprika Powder
6. Garam Masala Powder
etc...etc..
If you made a Mix Powder with only the primary spices, that would work fine.
Bassar Mix has nothing to do with Bengali BIR's and is simply not used.
Its a Pakistani curry powder with a lot of harsh chilli added. You will get to know this
Bassar background flavour if your local Indian Restaurant is Punjabi/Pakistani owned.
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18 ingredients, ooops I've only got 17 in mine
Chewys 3hr Curry base sauce
200ml any vegetable oil
1 medium carrot.
1 Large bulb of Garlic.
3 inch piece of fresh ginger.
A quarter of medium white cabbage.
1 medium green capsicum.
A handful of fresh coriander+stalks.
1tbsp of Salt.
2 Kilos Onions.
3 litres tap water
Put a lid on and Boil it up for at least an hour.
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Add quarter of a tube of tomato puree, or Chefs spoon.
2 tbsp of Mixed Powder. ( for a stronger flavoured base)
Mixed powder in the vid :-
2 tsp Madras Curry Powder
2 tsp Turmeric Powder
1 tsp Coriander Powder
1 tsp Cumin Powder
1 tsp Kashmiri Chilli Powder
0.5 tsp Garam Masala or Kitchen King
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cheers Chewy