Boil the potatoes until fork tender. Let it cool, then peel the skin off. Set aside.
Combine the ingredients for the samosa outer layer. Knead for 10-12 minutes. Cover and set aside for 15 minutes.
On a skillet, add oil. After a minute add the panch phoron, turmeric powder. Mash the potatoes with a masher or by hand add it to the skillet. Stir for about 3-5 minutes. Turn off heat and let it cool.
Add the roasted spice powder and coriander powder. Mix. Add salt for taste.
Now it’s samosa time! Take the dough (about a size of a golf ball). Roll it out into a circle. Use a knife to cut the dough in half.
Brush some water on the bottom where the cut is made, fold the dough into a cone. Take about 1-2 tsp of potato filling and stuff inside. Then seal the bottom and use a fork to make a design.
In a small pan, add oil over medium heat and then fry the samosas golden brown. Take them out and place them on a paper towel. Enjoy them with chutneys and sauces.