Marinating mix- you can apply whichever spice-mix you prefer! Personally I like to use garam masala, turmeric, chili powder (to taste or atleast the one which is not hot but lends good color, cumin-coriander powder mix, ginger powder/paste and garlic paste. Apply evenly and let sit for couple of hours.
Making of Shrimp Masala:
Heat sesame or coconut oil in a wok/pan. Here I am cooking in traditional Indian iron cook-ware, but you can easily make this in any good quality (thick bottom) steel pan. Next add a little asafoetida and black mustard seeds. Once the seeds have popped, add a few dried red chilies and finely chopped red onions. Saute the onion for couple of minutes and then lay those marinated shrimps on top of the onions (see step 1 picture). Lower heat so shrimps cook slowly with mild heat. Now, now- don't get impatient, considering these are shrimps, they still cook in just a few minutes! Then mix well (see step 2 picture) and add a little of sea salt, or Himalayan pink or black salt as well as finely chopped cilantro and mix well (see step 3 picture).
Serve on a bed of white rice and enjoy warm!