Which others have your tried 976bar?
I can't remember who posted this, but its one that I used to use, but could never get a decent curry from it......

Vegetables
Cooking onions (1.5kg unpeeled, 1.25kg peeled)
1 large carrot (200g unshaved, 160g shaved)
1 large green pepper (225g whole, 200g trimmed and deseeded)
4 to 6 Salad potatoes (250g unshaved, 210g shaved)
Chop roughly and add to a very large cooking pot
Add:-
2 medium tomatoes (chopped into quarters)
2 cups (500 ml) of fresh vegetable oil
25g finely chopped garlic gloves (about 4 large cloves)
10g finely chopped fresh ginger root (about 1 inch cube)
1 tbsp (15 ml) salt
2.5 litres of water, which will cover all the ingredients
Cover and bring to boil. Remain covered and simmer vigorously for 40 minutes stirring occasionally.
Add:-
Half a tin (200 g) of chopped plum tomatoes (Italian Napolina)
Boil covered for another 5 minutes.
Add:-
25 ml cumin powder
25 ml coriander powder
25 ml turmeric powder
25 ml sweet paprika (or deghi mirch)
Boil covered for another 10 minutes. Remove from heat and blend for at least 5 minutes until very smooth. Add 1 litre of water. The gravy will now resemble a very thin soup.
Bring to boil. Simmer vigorously (almost a boil) uncovered for about 30 minutes stirring occasionally. Remove any scum * (not froth) forming on the surface. When the oil completely separates the gravy is complete.