Originally Posted by fluffybunyip:
“I know you weren't replying to me but I think it could be done :-
Jalfrezi:
2 tomatoes (skinned and chopped)
1 onion
1 clove garlic
1 tsp cumin
1 tsp coriander seeds
1 tsp garam masala
2 tsp turmeric
oil
lemon juice
salt
sugar
and obviously potatoes for chips. Assuming you had the ingredients in and that the curry had no meat in, it might come to less than a pound! Definitely couldn't be done without meat though.”
As you say, if you had all the ingredients in you might be able to do it for under £1, but if you already had all of those including the spices would you be considering buying £1 curry & chips in the first place?

It's not just the ingredients to be priced though - you'd also have to cost the prep time, the gas/electricity used, the value of the time you spend washing & drying-up afterwards, the cost of the water & washing-up liquid, & I bet I've left other things out that should be borne in mind.
If you didn't have the ingredients, I don't believe you could do it for £1 even leaving meat out of the equation. For a start, you couldn't buy just enough for one serving, so you'd have to calculate the cost of the ingredients divided by how many servings you got from each item. Also, some things would end up being a waste of money (e.g. lemon juice), because if you wouldn't be using them again for months (if ever) they'd go off & you'd end up throwing them away. Even the other recipe linked to would still require a fair spend if you didn't have the ingredients already. You'd also have to factor in the cost of the time you spend shopping for each item (you do want it to taste good enough to eat

) if you wouldn't have bought them otherwise.
As much as I like cooking, I very much doubt I could do it all for under £1, so if I liked curry & chips (I don't) I'd give the pack a try once. At the end of the day though, it's not just the cost, it's the taste & nutrition that matters most.