I feel like experimenting this base tonight. Can I double this recipe easily ? 
If it counts for anything I double it

However, it does fill my largest pan nearly to the brim meaning either a very controlled simmer or a lot of mess. There might also be less surface area for the amount of spice mix if you like to sprinkle it on the floating oil.
My only question is, in the recipe it calls for fresh tomato's. Would it be ok to use the same weight it tinned plum tomato's? (Just the tomato's, not the liquid in the tins).
You'll get a different taste to using fresh, but then again you'd probably get a different taste from batch to batch between two fresh tomatoes too. I'd say try it, you never know you might prefer the result

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By the way it would be nice for a more experienced member than me to comment on these questions
