Tasty Aloo Katli Masala Recipe

Potatoes, cut into roundels (katli) – 500 gms
Mustard seeds – 1/2 tsp
Cumin seeds – 1/2 tsp
Crushed peppercorns – 1 tsp
Red chilli flakes – 1 tsp
Tomato ketchup – 2 tbsp
Mint leaves, fine chopped – 2 tbsp
Salt – 1/2 tsp or to taste
Oil for deep frying  
Oil for sautéing – 1 tbsp