Basically what I'm saying is if a base uses a heavier amount of one ingredient, say for example, chilli, then it is going to give a hotter result to the base sauce and obviously affect the flavour (or heat in this case) of the final curry made from that base. As such, when making a curry using a hotter base, I would take this into account when using a recipe which is not specifically used for that particular base, otherwise it would be too hot or not hot enough. Same with tomatoes, if a base does not have tomatoes in it but I'm making a tomatoey curry, the amount of tomatoes or tomato puree used in that final curry would have to be amended as per the base recipe.
I guess what I really mean is that a final curry recipe needs to be built around the ingredients used in a base gravy, not the other way around. Thus when I follow a curry recipe, I like to know which base sauce was used as it would or could dramatically change the taste of the resulting dish

. The next time I make a recipe, I change it to suit my tastes, whether that be more tomatoes, chilli or whatever. I just think that when mixing and matching recipes, you must take into account the differences in ingredients, to leave out or put too much of something in somehow does no justice to either the base or curry recipe.
I mean, you could have left out the tomato from the saffron base since it was omitted from Darth's recipe, but then we'd be arguing that you'd not followd the saffron recipe and so the results were biased in some way towards Darth's base....Do you get what I mean?

Quote from: Bobby Bhuna on March 11, 2008, 04:25 PM
Quote from: smokenspices on March 11, 2008, 03:14 PM
Should we conclude from this (assuming that all or most are genuine BIR recipes), that there should be at least some tomato or tomato puree in the base recipe to fulfil the versatility requirement?
This would seem to be the case. It seems fairly obvious to me that most currys contain tomatoes in some form. In which case, it would save the BIR time to try and accommodate this in the base sauce, rather than having to add ingredients to each curry at the final stage.
I can understand the use of Tomato Puree at the final stage, as it helps with consistency and cooking the spices without burning them and also contributes to producing the BIR "toffee" smell.
I cannot however understand the use of Pasatta in the final stage dish. It would cool the pan down too much and waste cooking time. It's also more expensive than tinned tomatoes in my local supermarket. Finally, I never heard, from the many first hand BIR kitchen encounters on this site, of the use of Pasatta in curry cooking.
Taking this into account, coupled with the fact that we know that most curries contain a fresh / tinned tomato element, I have to conclude, as SnS suggests, the tomatoes must be added at the base sauce stage. 
Again, I thin you're wrong...simply because a curry recipe must be built around the spices and ingredients used in the base.....A white sauce quickly becomes a mustard sauce, cheese sauce parsley sauce at the inclusion of one or two ingredients all of which dramatically change the final sauce...You wouldn't use parsley sauce in a lasagne....and there, I think, I rest my case ;D