1. Add potatoes to a pot filled with water and boil until cooked through (about 7-10 minutes).
2. Drain, transfer potatoes to a bowl and mash using a potato masher or fork. Set aside and let cool to room temperature.
3. In a pan over medium heat, add 1 tablespoon olive oil, jalapeno, garlic, onion and ginger. Cook for a few minutes until onions are soft (about 4 minutes). Put in a bowl and let cool to room temperature.
4. Chop salmon into small pieces (like a tartare), add to the bowl with the potatoes (ONLY when potatoes have cooled down, otherwise the heat will cook the salmon). Add cooled onion and jalapeno mixture, egg and bread crumbs and mix well.

Making salmon patties:

1. Spoon some of the mixture into your hands and shape into patties about the size of your palm.
2. Heat up the butter, olive oil until it bubbles and add patties (you may need to do this in batches. Do not overcrowd the pan). Cook each side for about 4 minutes, until patties are golden brown.
3. Sprinkle scallions on top and serve with rice and soy dipping sauce.

Soy Dipping Sauce:

1. Put all the ingredients for the sauce into a bowl and mix well. Serve.