Place a baking sheet lined with parchment paper in the oven and preheat to 300° F.
Using the medium grater attachment for your food processor, grate the potatoes and onion. Transfer to a large mixing bowl of ice cold water to keep potatoes from browning and remove some of the starch. Soak the grated potatoes for 15 minutes.*
When you are just about ready to fry, drain the potatoes and onions. Either blot them dry with a paper towels or wring them out in a tea towel to dry them as best as possible.
Transfer the dried potato mixture to a medium mixing bowl and toss with the flour, egg, garlic powder and salt.
Heat a large non-stick skillet over medium heat with about 1/8 inch of olive oil. When oil is shimmering, scoop 1/4 cup of the latke mixture into the pan, flatten with a spatula, and fry for 4-5 minutes, or until crispy, flip and fry 3-4 minutes on the other side. If they are frying faster, reduce the heat.
Place the latkes on the baking sheet in the oven to keep them warm while you finish frying the remaining latkes.
Garnish with fresh chives and serve with sour cream and applesauce.
If you've tried this recipe, come back and let us know how it was in the comments or ratings.
Notes
*soaking the potatoes is an optional step. It prevents them from turning brown and removes some starch, but honestly after you fry them up, no one will not if they oxidized a little.