First you have to make chowmein for it.Its recipe can be learnt from here
If your chowmein is ready then there nothing much left to be done.Things required for the preparation of outer layer of samosa are as follows:-
1Cup Maida(All purpose flour)
1/4th tsp salt
1tsp corn flour(optional,it makes the samosa crispy )
Water to knead the dough
Step4:After 15 min take the dough and roll out small circles of 5” diameter from it.
Step5: Cut each circle into two halves and run a moist finger along the diameter. Join the edges of each semi-circle to make a cone.
Step6:Place a tbsp of filling in the cone and seal it by pressing it with your hand.
Step9:Serve hot with tomato ketchup.