In a pan, add ½ cup peanuts and roast them lightly on medium flame. Then, add ¼ cup sesame seeds and roast them until fragrant. Transfer the mixture to a plate and let it cool completely.
Once cooled, transfer the peanut-sesame mixture to a mixer jar. Add 1 cup Ratlami sev and pulse-grind the mixture until it is coarsely ground. Keep it aside.
Now, in a mortar and pestle, add 10–12 garlic cloves, a pinch of salt, and 1 tbsp red chilli powder. Crush everything together to make a coarse garlic chutney. Keep it aside.
Then, in a mixing bowl, add ½ cup finely chopped onion, ½ cup chopped coriander leaves, the coarsely ground peanut mixture, 1 tbsp prepared garlic chutney, salt to taste, ¼ tsp hing, ½ tsp turmeric powder, 1 tsp Kashmiri red chilli powder, 1 tbsp coriander powder, ½ tsp garam masala, 2 tbsp sugar, 1 tbsp lemon juice, and 2 tbsp oil.
Mix everything well until all the ingredients are combined. The stuffing masala is ready.
Take 300 g or 20–25 medium-sized green chillies. Make a slit lengthwise in the centre of each chilli and remove the seeds and veins.
Stuff each green chilli generously with the prepared masala. Keep the stuffed chillies aside.