1. Place potatoes and baking soda in a pot with water and bring to a boil. When potatoes can be pierced with a fork, remove from heat, drain, and transfer to a bowl. Agitate the potatoes well, shaking the bowl back and forth and from side to side until you can see that the potato cubes are covered with small bits of potato. You can mash the potatoes a bit more at this point.
2. Meanwhile, sauté the onion in oil until golden brown. Add diced beef fry and continue to fry for another five minutes. Remove from heat and add to the potato mixture. Mix together, then add remaining ingredients.
3. Form the mixture into patties. Fry, or bake at 475 degrees Fahreneit (240 degrees Celsius), for approximately five to seven minutes on each side.