Simple Onion Tomato Thokku

Ingredients
Onion - 1 cup
Tomato - 1 cup
Home made sambar powder - 1 tblsp heaped
Turmeric powder - 1/3 tsp
Garlic pods - 5
Hing - generous pinch
Salt
Water - 1 cup
Oil - 3 tblsp  
Mustard - 1 tsp
Urud dal - 1/2 tsp
Curry leaves - 1 spring
Coriander leaves  - 1 tblsp

Preparation
1. Finely chop garlic, onion, tomato and coriander leaves.
2. Heat oil in pan and temper with mustard, urud dal and curry leaves. Add garlic and fry until it turns slightly brown. Add onion and fry until it turns golden brown. Add tomato and fry until it turns mushy. Add turmeric powder, chilly powder , hing, coriander leaves and salt. Fry for 2 min.
3. Add water and allow to boil. Close pan and cook until gravy thickens and thokku consistency is attained. Serve as side for tiffen items like Idly , dosa, puri/Chappathi and so on.

Note
1. You can skip water and increase oil. Fry until oil seperates and all blends well.
2.  You can grind onion and tomato to puree. Add puree and saute well until raw smell goes.