peel and mash 1 large potato or 2 medium potatoes (150 grams). you can steam or boil or pressure cook the potatoes.
mix very well. check the taste and add more chaat masala, red chilli powder or salt if required.
keep the potato stuffing aside.
slice the loaf in 0.5 inches width. butter them evenly.
now place the mixture and spread it all over the slices. cover with the second slice.
heat a thick bottomed tawa or a griddle and spread some butter on it. place the sandwiches on the tawa.
now place a lid on the sandwiches. on top of the lid, place a weight. you can also only place a heavy lid. the plate i used is not heavy, so i kept a heavy mortar on it. toast for a few minutes.
spread some butter on the top. you do have to check with a spatula, to see how much they base has got browned. when the base becomes golden, then flip.
now again place the lid and a weight on it. again toast for a few minutes till the base is golden and crisp.
once done, then remove in a plate.
serve these potato sandwiches hot with tomato ketchup or mint-coriander chutney.