In a mixer jar add roasted peanuts, red chillies, garlic, tamarind, cumin seeds, salt and water. Grind it to a smooth paste by adding little by little water until the required consistency you need.
In a tempering pan add oil, when hot add urad dal, mustard seeds and curry leaves. When everything splutters add it to the grinded peanut paste.
Mix well and have it with hot idly or dosa and enjoy 😋