Fry shallots and garlic: Heat 1 tsp oil. Fry 4 shallots, 4 garlic cloves and the roasted chillies 3-4 minutes. Cool.
Blend peanuts: Add de-skinned peanuts to blender and pulse to a coarse powder first.
Add remaining: Add fried shallots, garlic, chillies, a tiny piece of tamarind and salt. Blend with 4-5 tbsp water to a smooth but slightly textured paste.
Make Andhra tempering: Heat 2 tbsp oil. Add 1 tsp mustard seeds. When they pop add 1 tsp urad dal, dried red chilli and curry leaves.
Pour tempering: Pour tempering over the chutney. Mix well.
Adjust consistency: Add a little water if too thick.
Serve: Andhra peanut chutney is thicker and more textured than South Indian style. Serve with pesarattu, idli or dosa.