This is the red massala paste as demonstrated by Az(owner/chef) on our recent lesson.
In a medium cold pan put three heaped chef spoons of veg ghee together with six sliced onions.Add half desert spoon salt,one chef spoon of methi leaves,three chef spoons of blended tomatoes.bring to a medium heat and put the lid on.There is no water in the pan so be careful the mixture doesn't burn.The ghee placed on the bottom of the pan should gently cook the onions.If it does start to burn add a little water.After about twenty five minutes add two chef spoons of lemon dressing.
In a separate pan put two chef spoons tandoori paste,one and half of tikka paste,just a half of kahmiri massala paste,half of mint sauce,half tandoori massala powder.Also add a chefs spoon of coconut powder,two of almond powder and two of sugar.Then add two four ounce cups of plain yogurt.Az also added a chef spoon of tamarind sauce.This he made by soaking a a tamarind block in some hot water and taking out all the stringy bits.Add all this to the original mixture together with some red colour and then take the whole lot a blend.
Although we used our mix straight away usually it's put in the fridge overnight to become a stiff paste.
To make a tikka massala Az put a chef spoon of the paste in a cold pan,gently heated it up to melt the paste and added base sauce to get the desired thickness.He added the meat and simmered and finally added some uht carton cream.This is exactly how I witnessed it being made on my local take away lesson,and indeed the paste looked exactly the same in texture.This is the paste that is also used in the roshney chicken dish(which was lovely by the way)