Make the Creme Fraiche: Whisk Sour Cream, Cream, and Lemon Juice together. Cover in plastic and place in a warm area overnight. It will thicken from the reaction of enzymes. If it is still a little loose after sitting overnight, add a little sour cream to thicken. Add in chives, salt, and pepper and mix well. Refrigerate until needed.
Shred potatoes either by hand or with grater attachment on food processor. Mix in the rest of the ingredients until well incorporated.
Heat butter in a pan over medium high heat until it melts. Scoop in latke mix and flatten to a pancake. Brown for a couple minutes per side. The thinner you make them, the quicker they will cook.
Serve the latkes with creme fraiche or sour cream. Garnish with herbs if you desire.