Boil the potatoes until they are fork tender. Let it cool down and then peel the potatoes and mash it.
Add the spices; red chili powder, garam masala, chaat masala and then salt, green chilies and cilantro and mix well.
This will be our stuffing for the sandwich.
Take 2 bread slices and on one slice, apply a thin layer of butter. Sprinkle some chaat masala over the butter (optional).
Spread green chutney on the other slice.
Take a good scoop of the potato masala and spread it evenly on one of the bread slices.
Close both the slices and apply butter on the outside as well.
I used my sandwich maker to cook / grill the sandwich. You can also cook it on the stove top in a grill pan.
Repeat the same with the rest of the bread slices and serve with hot sauce or ketchup.
My boys love it with ketchup.