Spicy Middle Eastern Kabab Sauce (vegetarian)

This sauce is great on rice or with vegetables to give them a kick!

2 med Onions, peeled
2 c non-fat plain yoghurt
Dash of Lemon juice or rice vineger
Sugar
Pepper to taste
2 tb Ground cumin seeds
2 tb Ground coriander seeds
1/2 - 3/4 tsp cayanne pepper or Chili paste
2 tsp Fresh ground ginger and Garlic paste
Chopped corriander to taste
1/2 tsp Turmeric

1. Liquify in blender. Simmer until thickened slightly and flavor is set.